chore: archive QuickNav and ZTools into reference folder (#345)

Copy QuickNav and ZTools source trees into reference/ for developer
reference during the UI/UX rework. These are plain directories (not
submodules) and are not included in the build.

- reference/quicknav/ — QuickNav addon source
- reference/ztools/ — ZTools addon source

Part of the UI/UX rework preparation. See #346.

reference/quicknav/.gitignore

@@ -0,0 +1 @@
+__pycache__/

reference/quicknav/Init.py

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+import FreeCAD
+
+FreeCAD.Console.PrintLog("quicknav addon loaded\n")

reference/quicknav/InitGui.py

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+import FreeCAD as App
+import FreeCADGui as Gui
+
+
+class QuickNavWorkbench(Gui.Workbench):
+    """Invisible workbench that installs QuickNav on load.
+
+    QuickNav does not replace the active workbench -- it layers on top.
+    Loading QuickNav installs the event filter and nav bar, then
+    immediately re-activates the previously active workbench.
+    """
+
+    MenuText = "QuickNav"
+    ToolTip = "Keyboard-driven command navigation"
+
+    def Initialize(self):
+        from quicknav.core import QuickNavManager
+
+        QuickNavManager.instance().install()
+        App.Console.PrintMessage("QuickNav workbench initialized\n")
+
+    def Activated(self):
+        from quicknav.core import QuickNavManager
+
+        QuickNavManager.instance().handle_workbench_activated()
+
+    def Deactivated(self):
+        pass
+
+    def GetClassName(self):
+        return "Gui::PythonWorkbench"
+
+
+Gui.addWorkbench(QuickNavWorkbench())
+
+# Eager command registration
+from quicknav.commands import QuickNav_Toggle  # noqa: F401

reference/quicknav/package.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<package format="1" xmlns="https://wiki.freecad.org/Package_Metadata">
+  <name>QuickNav</name>
+  <description>Keyboard-driven command navigation</description>
+  <version>0.1.0</version>
+  <maintainer email="dev@kindred-systems.com">Kindred Systems</maintainer>
+  <license>LGPL-2.1</license>
+  <url type="repository">https://git.kindred-systems.com/kindred/quicknav</url>
+
+  <content>
+    <workbench>
+      <classname>QuickNavWorkbench</classname>
+      <subdirectory>./</subdirectory>
+    </workbench>
+  </content>
+
+  <kindred>
+    <min_create_version>0.1.0</min_create_version>
+    <load_priority>20</load_priority>
+    <pure_python>true</pure_python>
+    <dependencies>
+      <dependency>sdk</dependency>
+    </dependencies>
+  </kindred>
+</package>

reference/quicknav/quicknav/__init__.py

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+"""QuickNav -- keyboard-driven command navigation for FreeCAD and Kindred Create."""

reference/quicknav/quicknav/commands.py

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+"""FreeCAD command registrations for QuickNav."""
+
+import FreeCADGui as Gui
+
+
+class QuickNav_Toggle:
+    """Toggle QuickNav keyboard navigation on/off."""
+
+    def GetResources(self):
+        return {
+            "MenuText": "Toggle QuickNav",
+            "ToolTip": "Toggle keyboard-driven command navigation on/off",
+        }
+
+    def IsActive(self):
+        return True
+
+    def Activated(self):
+        from quicknav.core import QuickNavManager
+
+        QuickNavManager.instance().toggle_active()
+
+
+Gui.addCommand("QuickNav_Toggle", QuickNav_Toggle())

reference/quicknav/quicknav/core.py

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+"""QuickNav manager singleton.
+
+Orchestrates the event filter, navigation bar, and workbench/grouping
+state.  Created once when the QuickNavWorkbench is first activated.
+"""
+
+import FreeCAD as App
+import FreeCADGui as Gui
+
+from quicknav.workbench_map import (
+    get_command,
+    get_grouping,
+    get_groupings,
+    get_workbench_slot,
+)
+
+_PREF_PATH = "User parameter:BaseApp/Preferences/Mod/QuickNav"
+
+
+class QuickNavManager:
+    """Singleton managing QuickNav lifecycle and state."""
+
+    _instance = None
+
+    @classmethod
+    def instance(cls):
+        if cls._instance is None:
+            cls._instance = cls()
+        return cls._instance
+
+    def __init__(self):
+        self._active = False
+        self._installed = False
+        self._event_filter = None
+        self._nav_bar = None
+        self._current_workbench_slot = 2  # PartDesign default
+        self._current_grouping_idx = 0
+        self.previous_workbench = None
+        self._reactivating = False
+
+    # ------------------------------------------------------------------
+    # Lifecycle
+    # ------------------------------------------------------------------
+
+    def install(self):
+        """Install the event filter and navigation bar."""
+        if self._installed:
+            return
+
+        mw = Gui.getMainWindow()
+        if mw is None:
+            App.Console.PrintWarning("QuickNav: main window not available\n")
+            return
+
+        # Capture which workbench was active before QuickNav loaded.
+        try:
+            wb = Gui.activeWorkbench()
+            if wb:
+                self.previous_workbench = wb.__class__.__name__
+        except Exception:
+            pass
+
+        # Event filter
+        from quicknav.event_filter import QuickNavEventFilter
+
+        self._event_filter = QuickNavEventFilter(manager=self, parent=mw)
+        mw.installEventFilter(self._event_filter)
+
+        # Navigation bar
+        from quicknav.nav_bar import QuickNavBar
+
+        self._nav_bar = QuickNavBar(manager=self, parent=mw)
+        mw.addToolBar(self._nav_bar)
+        mw.insertToolBarBreak(self._nav_bar)
+
+        # Read saved preference
+        self._active = self._load_preference()
+        if not self._active:
+            self._nav_bar.hide()
+
+        self._installed = True
+        self._update_nav_bar()
+        App.Console.PrintLog("QuickNav: installed\n")
+
+    def uninstall(self):
+        """Remove the event filter and navigation bar."""
+        if not self._installed:
+            return
+
+        mw = Gui.getMainWindow()
+        if mw and self._event_filter:
+            mw.removeEventFilter(self._event_filter)
+        self._event_filter = None
+
+        if self._nav_bar:
+            self._nav_bar.hide()
+            self._nav_bar.setParent(None)
+            self._nav_bar.deleteLater()
+        self._nav_bar = None
+
+        self._installed = False
+        App.Console.PrintLog("QuickNav: uninstalled\n")
+
+    # ------------------------------------------------------------------
+    # State queries
+    # ------------------------------------------------------------------
+
+    def is_active(self):
+        return self._active
+
+    # ------------------------------------------------------------------
+    # Actions
+    # ------------------------------------------------------------------
+
+    def toggle_active(self):
+        """Toggle QuickNav on/off."""
+        self._active = not self._active
+        self._save_preference()
+        if self._nav_bar:
+            if self._active:
+                self._nav_bar.show()
+                self._update_nav_bar()
+            else:
+                self._nav_bar.hide()
+        state = "on" if self._active else "off"
+        App.Console.PrintMessage(f"QuickNav: {state}\n")
+
+    def switch_workbench(self, n):
+        """Switch to the workbench assigned to Ctrl+N."""
+        slot = get_workbench_slot(n)
+        if slot is None:
+            return
+        self._current_workbench_slot = n
+        self._current_grouping_idx = 0
+
+        # Activate the target workbench in FreeCAD.
+        try:
+            Gui.activateWorkbench(slot["class_name"])
+        except Exception as e:
+            App.Console.PrintWarning(f"QuickNav: could not activate {slot['class_name']}: {e}\n")
+
+        self._update_nav_bar()
+
+    def switch_grouping(self, n):
+        """Switch to the Nth grouping (1-based) in the current workbench."""
+        slot = get_workbench_slot(self._current_workbench_slot)
+        if slot is None:
+            return
+        groupings = get_groupings(slot["key"])
+        idx = n - 1
+        if 0 <= idx < len(groupings):
+            self._current_grouping_idx = idx
+            self._update_nav_bar()
+
+    def execute_command(self, n):
+        """Execute the Nth command (1-based) in the active grouping."""
+        slot = get_workbench_slot(self._current_workbench_slot)
+        if slot is None:
+            return
+        cmd_id = get_command(slot["key"], self._current_grouping_idx, n)
+        if cmd_id:
+            try:
+                Gui.runCommand(cmd_id)
+            except Exception as e:
+                App.Console.PrintWarning(f"QuickNav: command {cmd_id} failed: {e}\n")
+
+    # ------------------------------------------------------------------
+    # Workbench re-activation guard
+    # ------------------------------------------------------------------
+
+    def handle_workbench_activated(self):
+        """Called from QuickNavWorkbench.Activated() to restore the
+        previous workbench without infinite recursion."""
+        if self._reactivating:
+            return
+        if self.previous_workbench:
+            self._reactivating = True
+            try:
+                Gui.activateWorkbench(self.previous_workbench)
+            except Exception:
+                pass
+            finally:
+                self._reactivating = False
+
+    # ------------------------------------------------------------------
+    # Internal
+    # ------------------------------------------------------------------
+
+    def _update_nav_bar(self):
+        if not self._nav_bar:
+            return
+        slot = get_workbench_slot(self._current_workbench_slot)
+        if slot is None:
+            return
+        groupings = get_groupings(slot["key"])
+        grouping = get_grouping(slot["key"], self._current_grouping_idx)
+        commands = grouping["commands"] if grouping else []
+        self._nav_bar.update_display(
+            slot["display"], groupings, self._current_grouping_idx, commands
+        )
+
+    def _load_preference(self):
+        param = App.ParamGet(_PREF_PATH)
+        return param.GetBool("Enabled", True)
+
+    def _save_preference(self):
+        param = App.ParamGet(_PREF_PATH)
+        param.SetBool("Enabled", self._active)

reference/quicknav/quicknav/event_filter.py

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+"""Key event filter for QuickNav.
+
+Installed on FreeCAD's main window to intercept number key presses
+when QuickNav is active.  Passes through all events when inactive
+(except Key_0 for re-enable toggle).
+"""
+
+from PySide.QtCore import QEvent, QObject, Qt
+from PySide.QtWidgets import (
+    QAbstractSpinBox,
+    QApplication,
+    QLineEdit,
+    QPlainTextEdit,
+    QTextEdit,
+)
+
+# Widget types that accept text input.  QAbstractSpinBox covers
+# QSpinBox, QDoubleSpinBox, and FreeCAD's custom QuantitySpinBox
+# (used for Sketcher inline dimension entry).
+_TEXT_INPUT_TYPES = (QLineEdit, QTextEdit, QPlainTextEdit, QAbstractSpinBox)
+
+
+class QuickNavEventFilter(QObject):
+    """Intercepts key presses for QuickNav dispatch."""
+
+    def __init__(self, manager, parent=None):
+        super().__init__(parent)
+        self._manager = manager
+
+    def eventFilter(self, obj, event):
+        if event.type() != QEvent.KeyPress:
+            return False
+
+        key = event.key()
+        modifiers = event.modifiers() & ~Qt.KeypadModifier
+
+        # Key_0 with no modifiers always toggles, even when inactive.
+        if key == Qt.Key_0 and modifiers == Qt.NoModifier:
+            if not self._focus_is_text_input():
+                self._manager.toggle_active()
+                return True
+            return False
+
+        if not self._manager.is_active():
+            return False
+
+        # Don't intercept when a text input has focus.
+        if self._focus_is_text_input():
+            return False
+
+        if Qt.Key_1 <= key <= Qt.Key_9:
+            n = key - Qt.Key_0
+            if modifiers == Qt.ControlModifier:
+                self._manager.switch_workbench(n)
+                return True
+            elif modifiers == Qt.ShiftModifier:
+                self._manager.switch_grouping(n)
+                return True
+            elif modifiers == Qt.NoModifier:
+                self._manager.execute_command(n)
+                return True
+
+        return False
+
+    def _focus_is_text_input(self):
+        """Return True if the focused widget is a text/number input."""
+        focused = QApplication.focusWidget()
+        if focused is None:
+            return False
+        if isinstance(focused, _TEXT_INPUT_TYPES):
+            return True
+        return self._is_in_task_panel(focused)
+
+    @staticmethod
+    def _is_in_task_panel(widget):
+        """Return True if *widget* is inside FreeCAD's task panel."""
+        parent = widget.parent() if widget else None
+        while parent is not None:
+            name = parent.objectName() or ""
+            cls = parent.__class__.__name__
+            if "TaskView" in name or "TaskView" in cls:
+                return True
+            parent = parent.parent() if hasattr(parent, "parent") else None
+        return False

reference/quicknav/quicknav/nav_bar.py

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+"""Navigation bar widget for QuickNav.
+
+A QToolBar that displays the current workbench, command groupings,
+and numbered commands.  Positioned at the bottom of the toolbar area.
+"""
+
+from PySide.QtCore import Signal
+from PySide.QtWidgets import QHBoxLayout, QLabel, QToolBar, QWidget
+
+
+class _ClickableLabel(QLabel):
+    """QLabel that emits *clicked* on mouse press."""
+
+    clicked = Signal()
+
+    def mousePressEvent(self, event):
+        self.clicked.emit()
+        super().mousePressEvent(event)
+
+
+class QuickNavBar(QToolBar):
+    """Bottom toolbar showing QuickNav state."""
+
+    _MAX_SLOTS = 9
+
+    def __init__(self, manager, parent=None):
+        super().__init__("QuickNav", parent)
+        self._manager = manager
+        self.setObjectName("QuickNavBar")
+        self.setMovable(False)
+        self.setFloatable(False)
+
+        container = QWidget()
+        layout = QHBoxLayout(container)
+        layout.setContentsMargins(4, 2, 4, 2)
+        layout.setSpacing(0)
+
+        # Workbench label
+        self._wb_label = QLabel()
+        self._wb_label.setContentsMargins(4, 0, 8, 0)
+        layout.addWidget(self._wb_label)
+
+        # Vertical separator
+        sep1 = QLabel("|")
+        sep1.setContentsMargins(4, 0, 4, 0)
+        layout.addWidget(sep1)
+
+        # Grouping labels
+        self._grouping_labels = []
+        for i in range(self._MAX_SLOTS):
+            label = _ClickableLabel()
+            label.setContentsMargins(4, 0, 4, 0)
+            label.clicked.connect(lambda n=i + 1: self._manager.switch_grouping(n))
+            self._grouping_labels.append(label)
+            layout.addWidget(label)
+
+        # Vertical separator
+        self._cmd_sep = QLabel("|")
+        self._cmd_sep.setContentsMargins(4, 0, 4, 0)
+        layout.addWidget(self._cmd_sep)
+
+        # Command labels
+        self._command_labels = []
+        for i in range(self._MAX_SLOTS):
+            label = _ClickableLabel()
+            label.setContentsMargins(4, 0, 4, 0)
+            label.clicked.connect(lambda n=i + 1: self._manager.execute_command(n))
+            self._command_labels.append(label)
+            layout.addWidget(label)
+
+        layout.addStretch()
+        self.addWidget(container)
+
+        self._apply_theme()
+
+    def update_display(self, wb_name, groupings, active_grouping_idx, commands):
+        """Refresh the bar with current state.
+
+        Parameters
+        ----------
+        wb_name : str
+            Workbench display name.
+        groupings : list[dict]
+            Grouping dicts with ``"name"`` keys.
+        active_grouping_idx : int
+            0-based index of the active grouping.
+        commands : list[tuple[str, str]]
+            ``(command_id, display_name)`` for the active grouping.
+        """
+        self._wb_label.setText(f"WB: {wb_name}")
+
+        for i, label in enumerate(self._grouping_labels):
+            if i < len(groupings):
+                prefix = f"\u276{i + 1}" if i == active_grouping_idx else f"{i + 1}"
+                label.setText(f" {prefix}: {groupings[i]['name']} ")
+                if i == active_grouping_idx:
+                    label.setStyleSheet(self._active_grouping_style)
+                else:
+                    label.setStyleSheet(self._inactive_grouping_style)
+                label.show()
+            else:
+                label.hide()
+
+        for i, label in enumerate(self._command_labels):
+            if i < len(commands):
+                label.setText(f" {i + 1}: {commands[i][1]} ")
+                label.setStyleSheet(self._command_style)
+                label.show()
+            else:
+                label.hide()
+
+    def _apply_theme(self):
+        """Apply Catppuccin Mocha theme if SDK is available, else Qt defaults."""
+        palette = None
+        try:
+            from kindred_sdk import load_palette
+
+            palette = load_palette()
+        except ImportError:
+            pass
+
+        if palette:
+            bg = palette.get("background.toolbar") or "#181825"
+            fg = palette.get("foreground") or "#cdd6f4"
+            accent = palette.get("accent.info") or "#89b4fa"
+            border = palette.get("border") or "#45475a"
+            muted = palette.get("foreground.muted") or "#a6adc8"
+        else:
+            # No theme — leave styles empty so Qt defaults apply.
+            self._active_grouping_style = "font-weight: bold;"
+            self._inactive_grouping_style = ""
+            self._command_style = ""
+            self._wb_label.setStyleSheet("font-weight: bold;")
+            return
+
+        self.setStyleSheet(
+            f"QToolBar#QuickNavBar {{ background: {bg}; border-top: 1px solid {border}; }}"
+        )
+        self._wb_label.setStyleSheet(f"color: {accent}; font-weight: bold;")
+        self._active_grouping_style = f"color: {accent}; font-weight: bold;"
+        self._inactive_grouping_style = f"color: {muted};"
+        self._command_style = f"color: {fg};"

reference/quicknav/quicknav/workbench_map.py

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+"""Static workbench slot assignments and command groupings.
+
+Phase 1 uses hardcoded data from the QuickNav spec (SPEC.md section 5).
+Phase 2 replaces this with dynamic toolbar introspection.
+"""
+
+# Fixed Ctrl+N workbench assignments
+WORKBENCH_SLOTS = {
+    1: {
+        "key": "sketcher",
+        "class_name": "SketcherWorkbench",
+        "display": "Sketcher",
+    },
+    2: {
+        "key": "partdesign",
+        "class_name": "PartDesignWorkbench",
+        "display": "Part Design",
+    },
+    3: {
+        "key": "assembly",
+        "class_name": "AssemblyWorkbench",
+        "display": "Assembly",
+    },
+    4: {
+        "key": "spreadsheet",
+        "class_name": "SpreadsheetWorkbench",
+        "display": "Spreadsheet",
+    },
+    5: {
+        "key": "techdraw",
+        "class_name": "TechDrawWorkbench",
+        "display": "TechDraw",
+    },
+}
+
+# Command groupings per workbench.  Each grouping has a name and up to
+# 9 commands as (FreeCAD_command_id, display_name) tuples.
+WORKBENCH_GROUPINGS = {
+    "sketcher": [
+        {
+            "name": "Primitives",
+            "commands": [
+                ("Sketcher_CreateLine", "Line"),
+                ("Sketcher_CreateRectangle", "Rectangle"),
+                ("Sketcher_CreateCircle", "Circle"),
+                ("Sketcher_CreateArc", "Arc"),
+                ("Sketcher_CreatePoint", "Point"),
+                ("Sketcher_CreateSlot", "Slot"),
+                ("Sketcher_CreateBSpline", "B-Spline"),
+                ("Sketcher_CreatePolyline", "Polyline"),
+                ("Sketcher_CreateEllipseByCenter", "Ellipse"),
+            ],
+        },
+        {
+            "name": "Constraints",
+            "commands": [
+                ("Sketcher_ConstrainCoincidentUnified", "Coincident"),
+                ("Sketcher_ConstrainHorizontal", "Horizontal"),
+                ("Sketcher_ConstrainVertical", "Vertical"),
+                ("Sketcher_ConstrainParallel", "Parallel"),
+                ("Sketcher_ConstrainPerpendicular", "Perpendicular"),
+                ("Sketcher_ConstrainTangent", "Tangent"),
+                ("Sketcher_ConstrainEqual", "Equal"),
+                ("Sketcher_ConstrainSymmetric", "Symmetric"),
+                ("Sketcher_ConstrainBlock", "Block"),
+            ],
+        },
+        {
+            "name": "Dimensions",
+            "commands": [
+                ("Sketcher_ConstrainDistance", "Distance"),
+                ("Sketcher_ConstrainDistanceX", "Horiz. Distance"),
+                ("Sketcher_ConstrainDistanceY", "Vert. Distance"),
+                ("Sketcher_ConstrainRadius", "Radius"),
+                ("Sketcher_ConstrainDiameter", "Diameter"),
+                ("Sketcher_ConstrainAngle", "Angle"),
+                ("Sketcher_ConstrainLock", "Lock"),
+                ("Sketcher_ConstrainSnellsLaw", "Refraction"),
+            ],
+        },
+        {
+            "name": "Construction",
+            "commands": [
+                ("Sketcher_ToggleConstruction", "Toggle Constr."),
+                ("Sketcher_External", "External Geom."),
+                ("Sketcher_CarbonCopy", "Carbon Copy"),
+                ("Sketcher_Offset", "Offset"),
+                ("Sketcher_Trimming", "Trim"),
+                ("Sketcher_Extend", "Extend"),
+                ("Sketcher_Split", "Split"),
+            ],
+        },
+        {
+            "name": "Tools",
+            "commands": [
+                ("Sketcher_Symmetry", "Mirror"),
+                ("Sketcher_RectangularArray", "Linear Array"),
+                ("Sketcher_Move", "Move"),
+                ("Sketcher_Rotate", "Rotate"),
+                ("Sketcher_Scale", "Scale"),
+                ("Sketcher_CloseShape", "Close Shape"),
+                ("Sketcher_ConnectLines", "Connect Edges"),
+            ],
+        },
+    ],
+    "partdesign": [
+        {
+            "name": "Additive",
+            "commands": [
+                ("PartDesign_Pad", "Pad"),
+                ("PartDesign_Revolution", "Revolution"),
+                ("PartDesign_AdditiveLoft", "Add. Loft"),
+                ("PartDesign_AdditivePipe", "Add. Pipe"),
+                ("PartDesign_AdditiveHelix", "Add. Helix"),
+                ("PartDesign_CompPrimitiveAdditive", "Add. Primitive"),
+            ],
+        },
+        {
+            "name": "Subtractive",
+            "commands": [
+                ("PartDesign_Pocket", "Pocket"),
+                ("PartDesign_Hole", "Hole"),
+                ("PartDesign_Groove", "Groove"),
+                ("PartDesign_SubtractiveLoft", "Sub. Loft"),
+                ("PartDesign_SubtractivePipe", "Sub. Pipe"),
+                ("PartDesign_SubtractiveHelix", "Sub. Helix"),
+                ("PartDesign_CompPrimitiveSubtractive", "Sub. Primitive"),
+            ],
+        },
+        {
+            "name": "Datums",
+            "commands": [
+                ("PartDesign_NewSketch", "New Sketch"),
+                ("PartDesign_Plane", "Datum Plane"),
+                ("PartDesign_Line", "Datum Line"),
+                ("PartDesign_Point", "Datum Point"),
+                ("PartDesign_ShapeBinder", "Shape Binder"),
+                ("PartDesign_SubShapeBinder", "Sub-Shape Binder"),
+                ("ZTools_DatumCreator", "ZT Datum Creator"),
+                ("ZTools_DatumManager", "ZT Datum Manager"),
+            ],
+        },
+        {
+            "name": "Transformations",
+            "commands": [
+                ("PartDesign_Mirrored", "Mirrored"),
+                ("PartDesign_LinearPattern", "Linear Pattern"),
+                ("PartDesign_PolarPattern", "Polar Pattern"),
+                ("PartDesign_MultiTransform", "MultiTransform"),
+                ("ZTools_RotatedLinearPattern", "ZT Rot. Linear"),
+            ],
+        },
+        {
+            "name": "Modeling",
+            "commands": [
+                ("PartDesign_Fillet", "Fillet"),
+                ("PartDesign_Chamfer", "Chamfer"),
+                ("PartDesign_Draft", "Draft"),
+                ("PartDesign_Thickness", "Thickness"),
+                ("PartDesign_Boolean", "Boolean"),
+                ("ZTools_EnhancedPocket", "ZT Enh. Pocket"),
+            ],
+        },
+    ],
+    "assembly": [
+        {
+            "name": "Components",
+            "commands": [
+                ("Assembly_InsertLink", "Insert Component"),
+                ("Assembly_InsertNewPart", "Create Part"),
+                ("Assembly_CreateAssembly", "Create Assembly"),
+                ("Assembly_ToggleGrounded", "Ground"),
+                ("Assembly_CreateBom", "BOM"),
+            ],
+        },
+        {
+            "name": "Joints",
+            "commands": [
+                ("Assembly_CreateJointFixed", "Fixed"),
+                ("Assembly_CreateJointRevolute", "Revolute"),
+                ("Assembly_CreateJointCylindrical", "Cylindrical"),
+                ("Assembly_CreateJointSlider", "Slider"),
+                ("Assembly_CreateJointBall", "Ball"),
+                ("Assembly_CreateJointDistance", "Distance"),
+                ("Assembly_CreateJointAngle", "Angle"),
+                ("Assembly_CreateJointParallel", "Parallel"),
+                ("Assembly_CreateJointPerpendicular", "Perpendicular"),
+            ],
+        },
+        {
+            "name": "Patterns",
+            "commands": [
+                ("ZTools_AssemblyLinearPattern", "Linear Pattern"),
+                ("ZTools_AssemblyPolarPattern", "Polar Pattern"),
+            ],
+        },
+    ],
+    "spreadsheet": [
+        {
+            "name": "Editing",
+            "commands": [
+                ("Spreadsheet_MergeCells", "Merge Cells"),
+                ("Spreadsheet_SplitCell", "Split Cell"),
+                ("Spreadsheet_SetAlias", "Alias"),
+                ("Spreadsheet_Import", "Import CSV"),
+                ("Spreadsheet_Export", "Export CSV"),
+            ],
+        },
+        {
+            "name": "Formatting",
+            "commands": [
+                ("ZTools_SpreadsheetStyleBold", "Bold"),
+                ("ZTools_SpreadsheetStyleItalic", "Italic"),
+                ("ZTools_SpreadsheetStyleUnderline", "Underline"),
+                ("ZTools_SpreadsheetAlignLeft", "Align Left"),
+                ("ZTools_SpreadsheetAlignCenter", "Align Center"),
+                ("ZTools_SpreadsheetAlignRight", "Align Right"),
+                ("ZTools_SpreadsheetBgColor", "BG Color"),
+                ("ZTools_SpreadsheetTextColor", "Text Color"),
+                ("ZTools_SpreadsheetQuickAlias", "Quick Alias"),
+            ],
+        },
+    ],
+    "techdraw": [
+        {
+            "name": "Views",
+            "commands": [
+                ("TechDraw_PageDefault", "New Page"),
+                ("TechDraw_View", "Insert View"),
+                ("TechDraw_ProjectionGroup", "Projection Group"),
+                ("TechDraw_SectionView", "Section View"),
+                ("TechDraw_DetailView", "Detail View"),
+                ("TechDraw_ActiveView", "Active View"),
+            ],
+        },
+        {
+            "name": "Dimensions",
+            "commands": [
+                ("TechDraw_LengthDimension", "Length"),
+                ("TechDraw_HorizontalDimension", "Horizontal"),
+                ("TechDraw_VerticalDimension", "Vertical"),
+                ("TechDraw_RadiusDimension", "Radius"),
+                ("TechDraw_DiameterDimension", "Diameter"),
+                ("TechDraw_AngleDimension", "Angle"),
+            ],
+        },
+        {
+            "name": "Annotations",
+            "commands": [
+                ("TechDraw_Annotation", "Annotation"),
+                ("TechDraw_Balloon", "Balloon"),
+                ("TechDraw_LeaderLine", "Leader Line"),
+                ("TechDraw_CosmeticVertex", "Cosmetic Vertex"),
+                ("TechDraw_Midpoints", "Midpoints"),
+                ("TechDraw_CenterLine", "Center Line"),
+            ],
+        },
+    ],
+}
+
+
+def get_workbench_slot(n):
+    """Return workbench info dict for Ctrl+N, or None if unassigned."""
+    return WORKBENCH_SLOTS.get(n)
+
+
+def get_groupings(workbench_key):
+    """Return the grouping list for a workbench key."""
+    return WORKBENCH_GROUPINGS.get(workbench_key, [])
+
+
+def get_grouping(workbench_key, grouping_idx):
+    """Return a specific grouping dict by 0-based index, or None."""
+    groupings = get_groupings(workbench_key)
+    if 0 <= grouping_idx < len(groupings):
+        return groupings[grouping_idx]
+    return None
+
+
+def get_command(workbench_key, grouping_idx, n):
+    """Return the FreeCAD command ID for the Nth command (1-based), or None."""
+    grouping = get_grouping(workbench_key, grouping_idx)
+    if grouping and 1 <= n <= len(grouping["commands"]):
+        return grouping["commands"][n - 1][0]
+    return None

reference/ztools/KINDRED_INTEGRATION.md

@@ -0,0 +1,385 @@
+# Kindred Create Integration Guide
+
+This document outlines the requirements, options, and steps for integrating the ztools workbench into Kindred Create as a native workbench.
+
+---
+
+## Table of Contents
+
+1. [Current Architecture Overview](#current-architecture-overview)
+2. [Integration Options](#integration-options)
+3. [Files Requiring Modification](#files-requiring-modification)
+4. [Branding Changes](#branding-changes)
+5. [FreeCAD API Dependencies](#freecad-api-dependencies)
+6. [Recommended Integration Path](#recommended-integration-path)
+7. [Testing Checklist](#testing-checklist)
+
+---
+
+## Current Architecture Overview
+
+### Directory Structure
+
+```
+ztools-0065/
+├── package.xml                    # FreeCAD addon metadata
+├── CatppuccinMocha/               # Preference pack (theme)
+└── ztools/                        # Main addon directory
+    ├── Init.py                    # Pre-GUI initialization
+    ├── InitGui.py                 # Workbench class definition
+    └── ztools/                    # Python package
+        ├── __init__.py
+        ├── commands/              # GUI commands
+        │   ├── __init__.py
+        │   ├── datum_commands.py
+        │   ├── datum_viewprovider.py
+        │   ├── pattern_commands.py
+        │   ├── pocket_commands.py
+        │   ├── assembly_pattern_commands.py
+        │   └── spreadsheet_commands.py
+        ├── datums/                # Datum creation logic
+        │   ├── __init__.py
+        │   └── core.py
+        └── resources/             # Icons and theming
+            ├── __init__.py
+            ├── icons.py
+            └── theme.py
+```
+
+### Module Statistics
+
+| Component | Files | Commands | Description |
+|-----------|-------|----------|-------------|
+| Datum Tools | 3 | 2 | 15 attachment modes, DatumCreator + DatumManager |
+| Pattern Tools | 1 | 1 | Rotated linear pattern |
+| Pocket Tools | 1 | 1 | Enhanced pocket with face selection |
+| Assembly Tools | 1 | 2 | Linear and polar assembly patterns |
+| Spreadsheet Tools | 1 | 9 | Formatting and quick alias |
+| Resources | 2 | - | 33 SVG icons, theme colors |
+
+### External Dependencies
+
+- **Python Standard Library Only** - No pip dependencies
+- **FreeCAD Modules**: FreeCAD, FreeCADGui, Part, PartDesign, Sketcher, Assembly (1.0+), Spreadsheet
+- **Qt/PySide**: QtCore, QtGui, QtWidgets (via FreeCAD's bundled PySide)
+
+---
+
+## Integration Options
+
+### Option A: Addon-Style Integration (Minimal Changes)
+
+**Effort**: Low  
+**Compatibility**: Maintains upstream FreeCAD compatibility
+
+Bundle ztools as a pre-installed addon in Kindred Create's addon directory.
+
+**Pros**:
+- Minimal code changes
+- Can still be distributed as standalone addon
+- Easy to update independently
+
+**Cons**:
+- Not truly "native" - still appears as addon
+- Users could accidentally uninstall
+
+**Changes Required**:
+- Update `package.xml` metadata with Kindred Create branding
+- Optionally rename workbench display name
+
+### Option B: Native Workbench Integration (Moderate Changes)
+
+**Effort**: Medium  
+**Compatibility**: Kindred Create specific
+
+Move ztools into FreeCAD's `Mod/` directory as a first-party workbench.
+
+**Pros**:
+- Appears alongside PartDesign, Assembly, etc.
+- Cannot be uninstalled via Addon Manager
+- Full integration with Kindred Create identity
+
+**Cons**:
+- Requires maintaining fork-specific code
+- Branding changes throughout codebase
+
+**Changes Required**:
+- Rename all `ZTools_*` commands to `KindredCreate_*` or similar
+- Update workbench class name and identifiers
+- Modify directory structure to match FreeCAD conventions
+- Update all user-facing strings
+
+### Option C: Full Workbench Replacement (Major Changes)
+
+**Effort**: High  
+**Compatibility**: Kindred Create only
+
+Replace existing PartDesign/Assembly workbenches with unified Kindred workbench.
+
+**Pros**:
+- Unified user experience
+- Complete control over workflow
+
+**Cons**:
+- Significant development effort
+- Diverges heavily from upstream FreeCAD
+- Harder to merge upstream improvements
+
+---
+
+## Files Requiring Modification
+
+### Critical Files
+
+| File | Changes Needed |
+|------|----------------|
+| `package.xml` | Package name, description, workbench name, classname |
+| `ztools/InitGui.py` | Class name, MenuText, ToolTip, Icon, console messages |
+| `ztools/Init.py` | Console messages |
+| `ztools/ztools/commands/__init__.py` | No changes (internal imports) |
+
+### Command Registration (All Command Files)
+
+Each command file registers commands with `Gui.addCommand("ZTools_*", ...)`. These need renaming:
+
+| File | Commands to Rename |
+|------|-------------------|
+| `datum_commands.py` | `ZTools_DatumCreator`, `ZTools_DatumManager` |
+| `pattern_commands.py` | `ZTools_RotatedLinearPattern` |
+| `pocket_commands.py` | `ZTools_EnhancedPocket` |
+| `assembly_pattern_commands.py` | `ZTools_AssemblyLinearPattern`, `ZTools_AssemblyPolarPattern` |
+| `spreadsheet_commands.py` | `ZTools_SpreadsheetStyleBold`, `ZTools_SpreadsheetStyleItalic`, `ZTools_SpreadsheetStyleUnderline`, `ZTools_SpreadsheetAlignLeft`, `ZTools_SpreadsheetAlignCenter`, `ZTools_SpreadsheetAlignRight`, `ZTools_SpreadsheetBgColor`, `ZTools_SpreadsheetTextColor`, `ZTools_SpreadsheetQuickAlias` |
+
+### Internal References
+
+Custom properties use `ZTools_` prefix for disambiguation:
+
+| File | Properties |
+|------|-----------|
+| `datums/core.py` | `ZTools_SourceRefs`, `ZTools_Params`, `ZTools_DatumMode` |
+| `datum_viewprovider.py` | Same properties accessed |
+
+**Note**: These property names are stored in FreeCAD documents. Renaming them would break backward compatibility with existing documents. Consider keeping these internal or implementing migration.
+
+---
+
+## Branding Changes
+
+### User-Visible Strings
+
+| Location | Current | Suggested |
+|----------|---------|-----------|
+| `InitGui.py` MenuText | `"ztools"` | `"Kindred Design"` or similar |
+| `InitGui.py` ToolTip | `"Extended PartDesign replacement..."` | Kindred-specific description |
+| `InitGui.py` console messages | `"ztools workbench..."` | `"Kindred Design workbench..."` |
+| `Init.py` console messages | `"ztools addon loaded"` | `"Kindred Design loaded"` |
+| Toolbar names | `"ztools Datums"`, etc. | `"Kindred Datums"`, etc. |
+| Menu names | `"ztools"` | `"Kindred"` |
+
+### Command Prefixes
+
+Current: `ZTools_*`  
+Suggested: `KindredCreate_*`, `Kindred_*`, or `KC_*`
+
+### Class Names
+
+| Current | Suggested |
+|---------|-----------|
+| `ZToolsWorkbench` | `KindredDesignWorkbench` |
+| `ZToolsDatumObject` | `KindredDatumObject` |
+| `ZToolsDatumViewProvider` | `KindredDatumViewProvider` |
+
+---
+
+## FreeCAD API Dependencies
+
+### Core APIs Used
+
+```python
+# Application
+import FreeCAD as App
+import FreeCADGui as Gui
+
+# Part/PartDesign
+import Part
+import PartDesign
+
+# Workbench patterns
+Gui.Workbench              # Base class
+Gui.addCommand()           # Command registration
+Gui.Control.showDialog()   # Task panels
+Gui.Selection              # Selection observer
+
+# Document operations
+App.ActiveDocument
+doc.openTransaction()
+doc.commitTransaction()
+doc.abortTransaction()
+doc.recompute()
+
+# Feature Python
+Part.makeCompound()
+doc.addObject("Part::FeaturePython", name)
+doc.addObject("PartDesign::Plane", name)
+doc.addObject("PartDesign::Line", name)
+doc.addObject("PartDesign::Point", name)
+doc.addObject("App::Link", name)
+```
+
+### Assembly Workbench APIs (FreeCAD 1.0+)
+
+```python
+# Assembly operations
+asm.TypeId == "Assembly::AssemblyObject"
+App.Link objects for component instances
+```
+
+### Spreadsheet APIs
+
+```python
+sheet.set(cell, value)
+sheet.getContents(cell)
+sheet.setStyle(cell, style)
+sheet.setAlignment(cell, alignment)
+sheet.setBackground(cell, (r, g, b))
+sheet.setForeground(cell, (r, g, b))
+sheet.setAlias(cell, alias)
+```
+
+### Qt/PySide APIs
+
+```python
+from PySide import QtCore, QtGui, QtWidgets
+
+# Dialogs
+QtWidgets.QColorDialog.getColor()
+
+# Task panels
+QtWidgets.QWidget subclasses
+
+# Selection from table views
+QTableView.selectionModel()
+QItemSelectionModel.selectedIndexes()
+```
+
+### Preference System
+
+```python
+App.ParamGet("User parameter:BaseApp/Preferences/Mod/Spreadsheet")
+params.SetUnsigned(key, value)
+params.GetUnsigned(key)
+```
+
+---
+
+## Recommended Integration Path
+
+### Phase 1: Branding Update (Option B)
+
+1. **Fork the repository** for Kindred Create
+2. **Rename package and workbench**:
+   - `package.xml`: Update name, description
+   - `InitGui.py`: Update class name, MenuText, ToolTip
+   - `Init.py`: Update log messages
+3. **Rename command prefixes**:
+   - Global find/replace: `ZTools_` → `Kindred_`
+   - Update all `Gui.addCommand()` calls
+   - Update all toolbar/menu references in `InitGui.py`
+4. **Update toolbar/menu labels**:
+   - `"ztools Datums"` → `"Kindred Datums"`
+   - etc.
+5. **Keep internal property names** (`ZTools_SourceRefs`, etc.) for document compatibility
+
+### Phase 2: Directory Restructure
+
+1. **Move to FreeCAD's Mod directory**:
+   ```
+   freecad-source/src/Mod/KindredDesign/
+   ├── Init.py
+   ├── InitGui.py
+   └── KindredDesign/
+       ├── commands/
+       ├── datums/
+       └── resources/
+   ```
+2. **Update CMakeLists.txt** in FreeCAD source to include new module
+3. **Add to default workbench list** if desired
+
+### Phase 3: Theme Integration
+
+1. **Move CatppuccinMocha** to Kindred Create's default themes
+2. **Optionally set as default theme** for new installations
+3. **Update `apply_spreadsheet_colors()`** to use Kindred theme colors
+
+---
+
+## Testing Checklist
+
+### Functional Tests
+
+- [ ] Workbench activates without errors
+- [ ] All toolbars appear with correct icons
+- [ ] All menus appear with correct structure
+- [ ] Datum Creator: All 15 modes work
+- [ ] Datum Manager: Opens (stub functionality)
+- [ ] Rotated Linear Pattern: Creates patterns correctly
+- [ ] Enhanced Pocket: Face selection works
+- [ ] Assembly Linear Pattern: Creates component arrays
+- [ ] Assembly Polar Pattern: Creates circular arrays
+- [ ] Spreadsheet Bold/Italic/Underline: Toggle correctly
+- [ ] Spreadsheet Alignment: Left/Center/Right work
+- [ ] Spreadsheet Colors: Dialogs open, colors apply
+- [ ] Spreadsheet Quick Alias: Creates aliases from labels
+- [ ] Undo/Redo works for all operations
+
+### Integration Tests
+
+- [ ] Existing FreeCAD documents open correctly
+- [ ] New documents created with Kindred tools save/load properly
+- [ ] PartDesign features work alongside Kindred datums
+- [ ] Assembly joints work with Kindred patterns
+- [ ] Spreadsheet aliases work in PartDesign expressions
+
+### Theme Tests
+
+- [ ] Catppuccin Mocha preference pack loads
+- [ ] Spreadsheet text colors are correct (light on dark)
+- [ ] Icons render with correct theme colors
+- [ ] QSS styling applies to all custom widgets
+
+---
+
+## Migration Notes
+
+### Document Compatibility
+
+Documents created with ztools will contain:
+- Objects with `ZTools_*` custom properties
+- References to `ZTools_*` in expressions (unlikely but possible)
+
+**Recommendation**: Keep internal property names unchanged, or implement a document migration script that updates property names on load.
+
+### User Preference Migration
+
+If users have existing FreeCAD installations:
+- Spreadsheet color preferences are stored per-user
+- Consider running `apply_spreadsheet_colors()` on first Kindred Create launch
+
+---
+
+## Summary
+
+The ztools workbench is well-structured for integration into Kindred Create. The recommended path is **Option B (Native Workbench Integration)** which provides:
+
+- Native appearance alongside other FreeCAD workbenches
+- Kindred Create branding throughout
+- Maintained document compatibility
+- Reasonable development effort
+
+Key points:
+- **No external dependencies** - clean integration
+- **Standard FreeCAD APIs** - future-compatible
+- **Modular structure** - easy to extend
+- **33 custom icons** - complete visual identity ready for recoloring
+
+Estimated effort for full integration: 2-4 hours for branding changes, additional time for build system integration depending on Kindred Create's structure.

reference/ztools/PLAN.md

@@ -0,0 +1,420 @@
+# ZTools Development Plan
+
+## Current Status: v0.3.0 (80% complete)
+
+### What's Working
+- Workbench registration with 17 toolbars and menus
+- All 15 datum creation functions with custom ZTools attachment system
+- Datum Creator GUI (task panel with Planes/Axes/Points tabs)
+- OK button creates datum, Cancel dismisses without creating
+- Rotated Linear Pattern feature (complete)
+- Icon system (32+ Catppuccin-themed SVGs)
+- Metadata storage system (ZTools_Type, ZTools_Params, ZTools_SourceRefs)
+- Spreadsheet linking for parametric control
+- FreeCAD 1.0+ Assembly workbench integration (all stock commands)
+- Assembly Linear Pattern tool (complete)
+- Assembly Polar Pattern tool (complete)
+- FreeCAD Spreadsheet workbench integration (all stock commands)
+- zSpreadsheet formatting toolbar (9 commands)
+
+### Recent Changes (2026-01-25)
+- Added zSpreadsheet module with formatting toolbar
+- Native Spreadsheet commands exposed (CreateSheet, Import, Export, SetAlias, MergeCells, SplitCell)
+- Created 9 formatting commands: Bold, Italic, Underline, Align Left/Center/Right, Background Color, Text Color, Quick Alias
+- Added 9 spreadsheet icons (Catppuccin Mocha theme)
+- Spreadsheet text color now defaults to white for dark theme compatibility
+
+### Previous Changes (2026-01-25)
+- Added FreeCAD 1.0+ Assembly workbench integration
+- All native Assembly commands exposed in ztools workbench (21 commands)
+- Created Assembly Linear Pattern tool with task panel UI
+- Created Assembly Polar Pattern tool with task panel UI
+- Added assembly pattern icons (Catppuccin Mocha theme)
+
+### Previous Changes (2026-01-24)
+- Replaced FreeCAD's vanilla attachment system with custom ZTools attachment
+- All datums now use `MapMode='Deactivated'` with calculated placements
+- Source references stored in `ZTools_SourceRefs` property for future update capability
+- Fixed all 3 point functions (`point_on_edge`, `point_center_of_face`, `point_center_of_circle`) to accept source parameters
+- Removed redundant "Create Datum" button - OK now creates the datum
+- Task panel properly cleans up selection observer on close
+
+---
+
+## ZTools Attachment System
+
+FreeCAD's vanilla attachment system has reliability issues. ZTools uses a custom approach:
+
+1. **Calculate placement directly** from source geometry at creation time
+2. **Store source references** in `ZTools_SourceRefs` property (JSON)
+3. **Use `MapMode='Deactivated'`** to prevent FreeCAD attachment interference
+4. **Store creation parameters** in `ZTools_Params` for potential recalculation
+
+This gives full control over datum positioning while maintaining the ability to update datums when source geometry changes (future feature).
+
+### Metadata Properties
+
+All ZTools datums have these custom properties:
+- `ZTools_Type`: Creation method identifier (e.g., "offset_from_face", "midplane")
+- `ZTools_Params`: JSON-encoded creation parameters
+- `ZTools_SourceRefs`: JSON-encoded list of source geometry references
+
+---
+
+## Phase 0: Complete (Assembly Integration)
+
+### FreeCAD 1.0+ Assembly Workbench Commands
+
+ZTools exposes all native FreeCAD Assembly workbench commands in 3 toolbars:
+
+**Assembly Structure:**
+- `Assembly_CreateAssembly` - Create new assembly container
+- `Assembly_InsertLink` - Insert component as link
+- `Assembly_InsertNewPart` - Create and insert new part
+
+**Assembly Joints (13 types):**
+- `Assembly_CreateJointFixed` - Lock parts together (0 DOF)
+- `Assembly_CreateJointRevolute` - Rotation around axis
+- `Assembly_CreateJointCylindrical` - Rotation + translation along axis
+- `Assembly_CreateJointSlider` - Translation along axis
+- `Assembly_CreateJointBall` - Spherical rotation
+- `Assembly_CreateJointDistance` - Maintain distance
+- `Assembly_CreateJointParallel` - Keep parallel
+- `Assembly_CreateJointPerpendicular` - Keep perpendicular
+- `Assembly_CreateJointAngle` - Maintain angle
+- `Assembly_CreateJointRackPinion` - Rack and pinion motion
+- `Assembly_CreateJointScrew` - Helical motion
+- `Assembly_CreateJointGears` - Gear ratio constraint
+- `Assembly_CreateJointBelt` - Belt/pulley constraint
+
+**Assembly Management:**
+- `Assembly_ToggleGrounded` - Lock part in place
+- `Assembly_SolveAssembly` - Run constraint solver
+- `Assembly_CreateView` - Create exploded view
+- `Assembly_CreateBom` - Generate bill of materials
+- `Assembly_ExportASMT` - Export assembly file
+
+### ZTools Assembly Pattern Tools
+
+**Assembly Linear Pattern** (`ZTools_AssemblyLinearPattern`)
+
+Creates copies of assembly components along a linear direction.
+
+Features:
+- Multi-component selection via table UI
+- Direction vector (X, Y, Z)
+- Occurrence count (2-100)
+- Spacing modes: Total Length or Fixed Spacing
+- Creates as Links (recommended) or copies
+- Option to hide original components
+- Auto-detects parent assembly
+
+UI Layout:
+```
++----------------------------------+
+| Components                       |
+| +------------------------------+ |
+| | Component_1         [X]     | |
+| | Component_2         [X]     | |
+| +------------------------------+ |
+| Select components in 3D view     |
++----------------------------------+
+| Pattern Parameters               |
+| Direction: X[1] Y[0] Z[0]        |
+| Occurrences: [3]                 |
+| Mode: [Total Length v]           |
+| Total Length: [100 mm]           |
++----------------------------------+
+| Options                          |
+| [x] Create as Links              |
+| [ ] Hide original components     |
++----------------------------------+
+```
+
+**Assembly Polar Pattern** (`ZTools_AssemblyPolarPattern`)
+
+Creates copies of assembly components around a rotation axis.
+
+Features:
+- Multi-component selection via table UI
+- Axis presets (X, Y, Z) or custom axis vector
+- Center point specification
+- Occurrence count (2-100)
+- Angle modes: Full Circle (360) or Custom Angle
+- Creates as Links (recommended) or copies
+- Option to hide original components
+
+UI Layout:
+```
++----------------------------------+
+| Components                       |
+| +------------------------------+ |
+| | Component_1         [X]     | |
+| +------------------------------+ |
++----------------------------------+
+| Rotation Axis                    |
+| Axis: [Z Axis v]                 |
+| Direction: X[0] Y[0] Z[1]        |
+| Center: X[0] Y[0] Z[0]           |
++----------------------------------+
+| Pattern Parameters               |
+| Occurrences: [6]                 |
+| Mode: [Full Circle v]            |
+| Total Angle: [360 deg]           |
++----------------------------------+
+| Options                          |
+| [x] Create as Links              |
+| [ ] Hide original components     |
++----------------------------------+
+```
+
+---
+
+## Phase 0.5: Complete (zSpreadsheet)
+
+### FreeCAD Spreadsheet Workbench Commands
+
+ZTools exposes native Spreadsheet commands in the "Spreadsheet" toolbar:
+
+- `Spreadsheet_CreateSheet` - Create new spreadsheet
+- `Spreadsheet_Import` - Import CSV file
+- `Spreadsheet_Export` - Export to CSV
+- `Spreadsheet_SetAlias` - Set cell alias
+- `Spreadsheet_MergeCells` - Merge selected cells
+- `Spreadsheet_SplitCell` - Split merged cell
+
+### ZTools Spreadsheet Formatting Tools
+
+Quick formatting toolbar for cell styling without dialogs:
+
+**Style Commands:**
+- `ZTools_SpreadsheetStyleBold` - Toggle bold (B icon)
+- `ZTools_SpreadsheetStyleItalic` - Toggle italic (I icon)
+- `ZTools_SpreadsheetStyleUnderline` - Toggle underline (U icon)
+
+**Alignment Commands:**
+- `ZTools_SpreadsheetAlignLeft` - Align text left
+- `ZTools_SpreadsheetAlignCenter` - Align text center
+- `ZTools_SpreadsheetAlignRight` - Align text right
+
+**Color Commands:**
+- `ZTools_SpreadsheetBgColor` - Set cell background color (color picker)
+- `ZTools_SpreadsheetTextColor` - Set cell text color (color picker)
+
+**Utility Commands:**
+- `ZTools_SpreadsheetQuickAlias` - Create alias from adjacent label cell
+
+### Implementation Details
+
+**Cell Selection Helper:**
+The `get_selected_cells()` function:
+1. Gets active MDI subwindow
+2. Finds QTableView widget
+3. Gets selected indexes from selection model
+4. Converts to A1 notation (handles AA, AB, etc.)
+
+**Style Toggle Pattern:**
+```python
+current = sheet.getStyle(cell) or ""
+styles = set(s.strip() for s in current.split("|") if s.strip())
+if "bold" in styles:
+    styles.discard("bold")
+else:
+    styles.add("bold")
+sheet.setStyle(cell, "|".join(sorted(styles)))
+```
+
+**Color Picker Integration:**
+Uses Qt's `QColorDialog.getColor()` with Catppuccin defaults for dark theme.
+
+---
+
+## Phase 1: Complete (Datum Tools)
+
+All datum creation functions now work:
+
+### Planes (6 modes)
+- Offset from Face
+- Midplane (2 Faces)
+- 3 Points
+- Normal to Edge
+- Angled from Face
+- Tangent to Cylinder
+
+### Axes (4 modes)
+- 2 Points
+- From Edge
+- Cylinder Center
+- Plane Intersection
+
+### Points (5 modes)
+- At Vertex
+- XYZ Coordinates
+- On Edge (with parameter)
+- Face Center
+- Circle Center
+
+---
+
+## Phase 2: Complete Enhanced Pocket
+
+### 2.1 Wire Up Pocket Execution (pocket_commands.py)
+
+The EnhancedPocketTaskPanel has complete UI but no execute logic.
+
+Required implementation:
+1. Get selected sketch from user
+2. Create PartDesign::Pocket with selected type
+3. Apply "Flip Side to Cut" by:
+   - Reversing the pocket direction, OR
+   - Using a boolean cut approach with inverted profile
+4. Handle all pocket types: Dimension, Through All, To First, Up To Face, Two Dimensions
+
+### 2.2 Register Pocket Command
+
+Add to InitGui.py toolbar if not already present.
+
+---
+
+## Phase 3: Datum Manager
+
+### 3.1 Implement DatumManagerTaskPanel
+
+Replace the stub in datum_commands.py with functional panel:
+
+Features:
+- List all datum objects (planes, axes, points) in document
+- Filter by type (ZTools-created vs native)
+- Toggle visibility (eye icon per item)
+- Rename datums inline
+- Delete selected datums
+- Jump to datum in model tree
+
+UI Layout:
+```
++----------------------------------+
+| Filter: [All v] [ZTools only ☐]  |
++----------------------------------+
+| ☑ ZPlane_Offset_001    [👁] [🗑] |
+| ☑ ZPlane_Mid_001       [👁] [🗑] |
+| ☐ ZAxis_Cyl_001        [👁] [🗑] |
++----------------------------------+
+| [Rename] [Show All] [Hide All]   |
++----------------------------------+
+```
+
+---
+
+## Phase 4: Additional Features (Future)
+
+### 4.1 Module 2 Completion: Enhanced Pad
+- Multi-body support
+- Draft angles on pad
+- Lip/groove profiles
+
+### 4.2 Module 3: Body Operations
+- Split body at plane
+- Combine bodies
+- Shell improvements
+
+### 4.3 Module 4: Pattern Tools
+- Curve-driven pattern (sweep instances along spline)
+- Fill pattern (populate region with instances)
+- Pattern with variable spacing
+
+### 4.4 Datum Update Feature
+- Use stored `ZTools_SourceRefs` to recalculate datum positions
+- Handle topology changes gracefully
+- Option to "freeze" datums (disconnect from sources)
+
+---
+
+## File Reference
+
+| File | Purpose | Lines |
+|------|---------|-------|
+| `ztools/ztools/datums/core.py` | Datum creation functions | ~750 |
+| `ztools/ztools/commands/datum_commands.py` | Datum Creator/Manager GUI | ~520 |
+| `ztools/ztools/commands/pocket_commands.py` | Enhanced Pocket GUI | ~600 |
+| `ztools/ztools/commands/pattern_commands.py` | Rotated Linear Pattern | ~206 |
+| `ztools/ztools/commands/assembly_pattern_commands.py` | Assembly Linear/Polar Patterns | ~580 |
+| `ztools/ztools/commands/spreadsheet_commands.py` | Spreadsheet formatting tools | ~480 |
+| `ztools/InitGui.py` | Workbench registration | ~330 |
+| `ztools/ztools/resources/icons.py` | SVG icon definitions | ~540 |
+
+---
+
+## Testing Checklist
+
+### Phase 1 Tests (Datum Tools)
+- [ ] Create plane offset from face
+- [ ] Create midplane between 2 faces
+- [ ] Create plane from 3 points
+- [ ] Create plane normal to edge at various parameters
+- [ ] Create angled plane from face about edge
+- [ ] Create plane tangent to cylinder
+- [ ] Create axis from 2 points
+- [ ] Create axis from edge
+- [ ] Create axis at cylinder center
+- [ ] Create axis at plane intersection
+- [ ] Create point at vertex
+- [ ] Create point at XYZ coordinates
+- [ ] Create point on edge at parameter 0.0, 0.5, 1.0
+- [ ] Create point at face center (planar and cylindrical)
+- [ ] Create point at circle center (full circle and arc)
+- [ ] Verify ZTools_Type, ZTools_Params, ZTools_SourceRefs properties exist
+- [ ] Verify no "deactivated attachment mode" warnings in console
+
+### Phase 2 Tests (Enhanced Pocket)
+- [ ] Create pocket with Dimension type
+- [ ] Create pocket with Through All
+- [ ] Create pocket with Flip Side to Cut enabled
+- [ ] Verify pocket respects taper angle
+
+### Phase 3 Tests (Datum Manager)
+- [ ] Datum Manager lists all datums
+- [ ] Visibility toggle works
+- [ ] Rename persists after recompute
+- [ ] Delete removes datum cleanly
+
+### Assembly Integration Tests
+- [ ] Assembly workbench commands appear in toolbars
+- [ ] Assembly_CreateAssembly works from ztools
+- [ ] Assembly_InsertLink works from ztools
+- [ ] All joint commands accessible
+- [ ] Assembly_SolveAssembly works
+
+### Assembly Pattern Tests
+- [ ] Linear pattern with 3 occurrences along X axis
+- [ ] Linear pattern with Total Length mode
+- [ ] Linear pattern with Spacing mode
+- [ ] Linear pattern creates links (not copies)
+- [ ] Polar pattern with 6 occurrences (full circle)
+- [ ] Polar pattern with custom angle (90 degrees, 4 occurrences)
+- [ ] Polar pattern around Z axis
+- [ ] Polar pattern with custom center point
+- [ ] Multiple components can be patterned simultaneously
+- [ ] Pattern instances added to parent assembly
+
+### zSpreadsheet Tests
+- [ ] Spreadsheet toolbar appears with stock commands
+- [ ] ztools Spreadsheet toolbar appears with formatting commands
+- [ ] Create new spreadsheet via toolbar
+- [ ] Select cells and toggle Bold style
+- [ ] Select cells and toggle Italic style
+- [ ] Select cells and toggle Underline style
+- [ ] Align cells left/center/right
+- [ ] Set background color via color picker
+- [ ] Set text color via color picker (verify white default for dark theme)
+- [ ] Quick Alias creates alias from left-adjacent cell content
+- [ ] Undo/redo works for all formatting operations
+- [ ] Commands are disabled when no cells selected
+
+---
+
+## Notes
+
+- FreeCAD 1.0+ required (TNP mitigation assumed)
+- ZTools uses custom attachment system (not FreeCAD's vanilla attachment)
+- Catppuccin Mocha theme is bundled as preference pack
+- LGPL-3.0-or-later license

reference/ztools/ROADMAP.md

@@ -0,0 +1,388 @@
+# ZTools Roadmap
+
+**Version:** 0.3.0  
+**Last Updated:** 2026-01-25  
+**Target Platform:** FreeCAD 1.0+  
+**License:** LGPL-3.0-or-later
+
+---
+
+## Executive Summary
+
+ZTools is an extended PartDesign workbench replacement for FreeCAD, focused on velocity-driven CAD workflows. It integrates enhanced datum creation, assembly patterning, spreadsheet formatting, and a unified dark theme (Catppuccin Mocha).
+
+**Current State:** 80% complete for v1.0 release  
+**Active Development Areas:** Datum management, Enhanced Pocket completion, documentation
+
+---
+
+## Table of Contents
+
+1. [Implemented Features](#implemented-features)
+2. [Known Gaps & Incomplete Features](#known-gaps--incomplete-features)
+3. [FreeCAD Ecosystem Alignment](#freecad-ecosystem-alignment)
+4. [Development Roadmap](#development-roadmap)
+5. [Technical Architecture](#technical-architecture)
+6. [File Reference](#file-reference)
+
+---
+
+## Implemented Features
+
+### 1. Workbench Integration (17 Toolbars)
+
+ZTools consolidates multiple FreeCAD workbenches into a single unified interface:
+
+| Category | Toolbars | Commands |
+|----------|----------|----------|
+| PartDesign | Structure, Datums, Additive, Subtractive, Transformations, Dress-Up, Boolean | 35+ native commands |
+| Sketcher | Sketcher | 4 native commands |
+| Assembly | Assembly, Assembly Joints, Assembly Management | 21 native commands |
+| Spreadsheet | Spreadsheet | 6 native commands |
+| ZTools Custom | ztools Datums, ztools Patterns, ztools Features, ztools Assembly, ztools Spreadsheet | 14 custom commands |
+
+### 2. Datum Creation System (16 Functions)
+
+**Custom Attachment System** - Replaces FreeCAD's unreliable vanilla attachment:
+- Calculates placement directly from source geometry
+- Stores source references in `ZTools_SourceRefs` (JSON)
+- Uses `MapMode='Deactivated'` to prevent interference
+- Stores creation parameters in `ZTools_Params` for recalculation
+
+#### Datum Planes (7 modes)
+| Mode | Function | Parameters |
+|------|----------|------------|
+| Offset from Face | `plane_offset_from_face()` | distance (mm) |
+| Offset from Plane | `plane_offset_from_plane()` | distance (mm) |
+| Midplane | `plane_midplane()` | 2 parallel faces |
+| 3 Points | `plane_from_3_points()` | 3 vertices |
+| Normal to Edge | `plane_normal_to_edge()` | parameter (0.0-1.0) |
+| Angled | `plane_angled()` | angle (degrees) |
+| Tangent to Cylinder | `plane_tangent_to_cylinder()` | angle (degrees) |
+
+#### Datum Axes (4 modes)
+| Mode | Function | Parameters |
+|------|----------|------------|
+| 2 Points | `axis_from_2_points()` | 2 vertices |
+| From Edge | `axis_from_edge()` | linear edge |
+| Cylinder Center | `axis_cylinder_center()` | cylindrical face |
+| Plane Intersection | `axis_intersection_planes()` | 2 planes |
+
+#### Datum Points (5 modes)
+| Mode | Function | Parameters |
+|------|----------|------------|
+| At Vertex | `point_at_vertex()` | vertex |
+| XYZ Coordinates | `point_at_coordinates()` | x, y, z |
+| On Edge | `point_on_edge()` | parameter (0.0-1.0) |
+| Face Center | `point_center_of_face()` | face |
+| Circle Center | `point_center_of_circle()` | circular edge |
+
+**Datum Creator GUI:**
+- Auto-detection of 15+ creation modes based on selection
+- Manual mode override
+- Spreadsheet linking option
+- Custom naming
+- Real-time selection observer
+
+### 3. Pattern Tools (3 Commands)
+
+| Command | Description | Status |
+|---------|-------------|--------|
+| `ZTools_RotatedLinearPattern` | Linear pattern with incremental rotation per instance | Complete |
+| `ZTools_AssemblyLinearPattern` | Pattern assembly components linearly | Complete |
+| `ZTools_AssemblyPolarPattern` | Pattern assembly components around axis | Complete |
+
+**Assembly Pattern Features:**
+- Multi-component selection via table UI
+- Creates as Links (recommended) or copies
+- Direction/axis presets or custom vectors
+- Spacing modes: Total Length or Fixed Spacing
+- Angle modes: Full Circle or Custom Angle
+- Auto-detects parent assembly container
+
+### 4. Spreadsheet Formatting (9 Commands)
+
+| Command | Description | Status |
+|---------|-------------|--------|
+| `ZTools_SpreadsheetStyleBold` | Toggle bold | Complete |
+| `ZTools_SpreadsheetStyleItalic` | Toggle italic | Complete |
+| `ZTools_SpreadsheetStyleUnderline` | Toggle underline | Complete |
+| `ZTools_SpreadsheetAlignLeft` | Left align | Complete |
+| `ZTools_SpreadsheetAlignCenter` | Center align | Complete |
+| `ZTools_SpreadsheetAlignRight` | Right align | Complete |
+| `ZTools_SpreadsheetBgColor` | Background color picker | Complete |
+| `ZTools_SpreadsheetTextColor` | Text color picker | Complete |
+| `ZTools_SpreadsheetQuickAlias` | Auto-create alias from label | Complete |
+
+### 5. Enhanced Features
+
+| Command | Description | Status |
+|---------|-------------|--------|
+| `ZTools_EnhancedPocket` | Pocket with "Flip Side to Cut" (SOLIDWORKS-style) | 90% Complete |
+
+**Flip Side to Cut:** Removes material OUTSIDE the sketch profile instead of inside, using Boolean Common operation.
+
+### 6. Theme System (Catppuccin Mocha)
+
+- Complete Qt StyleSheet (QSS) for entire FreeCAD interface
+- 26-color palette consistently applied
+- 50+ widget types styled
+- FreeCAD-specific widgets: PropertyEditor, Python Console, Spreadsheet
+- Spreadsheet colors auto-applied on workbench activation
+
+### 7. Icon System (33 Icons)
+
+All icons use Catppuccin Mocha palette:
+- Workbench icon
+- Datum icons (planes, axes, points - 13 total)
+- Pattern icons (3 total)
+- Pocket icons (2 total)
+- Assembly pattern icons (2 total)
+- Spreadsheet formatting icons (9 total)
+
+---
+
+## Known Gaps & Incomplete Features
+
+### Critical (Must Fix)
+
+| Issue | Location | Description | Priority |
+|-------|----------|-------------|----------|
+| Datum Manager stub | `datum_commands.py:853` | Placeholder only - needs full implementation | High |
+| Datum edit recalculation | `datum_viewprovider.py:351,355,359` | Parameter changes don't recalculate placement from source geometry | High |
+
+### Non-Critical (Should Fix)
+
+| Issue | Location | Description | Priority |
+|-------|----------|-------------|----------|
+| Enhanced Pocket incomplete | `pocket_commands.py` | Taper angle disabled for flipped pockets | Medium |
+| Pocket execution logic | `pocket_commands.py` | UI complete but execution needs verification | Medium |
+
+### Future Enhancements (Nice to Have)
+
+| Feature | Description | Priority |
+|---------|-------------|----------|
+| Curve-driven pattern | Sweep instances along spline | Low |
+| Fill pattern | Populate region with instances | Low |
+| Variable spacing pattern | Non-uniform spacing | Low |
+| Enhanced Pad | Multi-body support, draft angles | Low |
+| Body operations | Split, combine, shell improvements | Low |
+
+---
+
+## FreeCAD Ecosystem Alignment
+
+### FreeCAD 1.0 (November 2024) - Current Target
+
+**Key Features ZTools Leverages:**
+- **TNP Mitigation:** Topological Naming Problem largely resolved
+- **Integrated Assembly Workbench:** Ondsel's assembly system now core
+- **Material System Overhaul:** New material handling
+- **UI/UX Improvements:** Dark/light themes, selection filters
+
+**ZTools Alignment:**
+- Custom attachment system complements TNP fix
+- Full integration with native Assembly workbench
+- Catppuccin theme extends FreeCAD's theming
+
+### FreeCAD 1.1 (Expected Late 2025)
+
+**Planned Features:**
+- New Transform Manipulator
+- UI Material Rendering Improvements
+- Continued TNP refinement for Sketcher/PartDesign
+
+**ZTools Opportunities:**
+- Watch for new Assembly API standardization
+- Monitor Sketcher improvements for datum integration
+
+### FreeCAD Strategic Priorities (from Roadmap)
+
+| FreeCAD Priority | ZTools Alignment |
+|------------------|------------------|
+| Model Stability | Custom attachment system prevents fragile models |
+| Assembly Integration | Full native Assembly command exposure |
+| Flatten Learning Curve | Unified toolbar consolidation |
+| UI Modernization | Catppuccin Mocha theme |
+| Streamlined Workflow | Quick formatting toolbars, auto-detection |
+
+### Ondsel Contributions (Note: Ondsel shut down October 2025)
+
+Ondsel's contributions now maintained by FreeCAD community:
+- Assembly workbench (ZTools integrates)
+- VarSets custom properties (potential future integration)
+- Sketcher improvements
+
+---
+
+## Development Roadmap
+
+### Phase 1: v0.3.x - Stability & Completion (Current)
+
+**Timeline:** Q1 2026
+
+| Task | Status | Priority |
+|------|--------|----------|
+| Complete Datum Manager GUI | Not Started | High |
+| Implement datum parameter recalculation | Not Started | High |
+| Verify Enhanced Pocket execution | Partial | Medium |
+| Add comprehensive test coverage | Not Started | Medium |
+| Documentation completion | In Progress | Medium |
+
+### Phase 2: v0.4.0 - Polish & UX
+
+**Timeline:** Q2 2026
+
+| Task | Description |
+|------|-------------|
+| Keyboard shortcuts | Add hotkeys for common operations |
+| Context menus | Right-click menus in 3D view |
+| Undo/redo improvements | Better transaction naming |
+| Error handling | User-friendly error messages |
+| Preferences panel | ZTools configuration UI |
+
+### Phase 3: v0.5.0 - Advanced Features
+
+**Timeline:** Q3 2026
+
+| Task | Description |
+|------|-------------|
+| Curve-driven pattern | Pattern along splines |
+| Enhanced Pad | Draft angles, lip/groove |
+| Body operations | Split, combine, shell |
+| Datum freeze/update | Control source geometry updates |
+
+### Phase 4: v1.0.0 - Production Release
+
+**Timeline:** Q4 2026
+
+| Task | Description |
+|------|-------------|
+| Full test suite | Automated testing |
+| User documentation | Complete user guide |
+| Video tutorials | Getting started series |
+| FreeCAD Addon Manager | Official listing |
+
+---
+
+## Technical Architecture
+
+### Directory Structure
+
+```
+ztools/
+├── Init.py                          # Startup (non-GUI)
+├── InitGui.py                       # Workbench registration
+└── ztools/
+    ├── __init__.py
+    ├── commands/                    # GUI commands
+    │   ├── __init__.py
+    │   ├── datum_commands.py        # Datum Creator/Manager
+    │   ├── datum_viewprovider.py    # Custom ViewProvider
+    │   ├── pattern_commands.py      # Rotated Linear Pattern
+    │   ├── pocket_commands.py       # Enhanced Pocket
+    │   ├── assembly_pattern_commands.py  # Assembly patterns
+    │   └── spreadsheet_commands.py  # Spreadsheet formatting
+    ├── datums/                      # Core datum library
+    │   ├── __init__.py
+    │   └── core.py                  # 16 datum functions
+    └── resources/                   # Assets
+        ├── __init__.py
+        ├── icons.py                 # 33 SVG icons
+        ├── theme.py                 # Catppuccin QSS
+        └── icons/                   # Generated SVG files
+```
+
+### Key Design Patterns
+
+1. **Command Pattern:** All tools follow FreeCAD's `GetResources()`, `Activated()`, `IsActive()` pattern
+2. **Task Panel Pattern:** Complex UIs use `QWidget` with selection observers
+3. **Feature Python Pattern:** Custom features use `Part::FeaturePython` with ViewProvider
+4. **Metadata System:** JSON properties for tracking ZTools objects
+
+### Metadata Properties
+
+All ZTools objects have:
+- `ZTools_Type`: Feature type identifier
+- `ZTools_Params`: JSON creation parameters
+- `ZTools_SourceRefs`: JSON source geometry references
+
+---
+
+## File Reference
+
+| File | Purpose | Lines |
+|------|---------|-------|
+| `InitGui.py` | Workbench registration, toolbars, menus | ~330 |
+| `datums/core.py` | 16 datum creation functions | ~1300 |
+| `commands/datum_commands.py` | Datum Creator/Manager GUI | ~520 |
+| `commands/datum_viewprovider.py` | Custom ViewProvider, edit panel | ~400 |
+| `commands/pattern_commands.py` | Rotated Linear Pattern | ~206 |
+| `commands/pocket_commands.py` | Enhanced Pocket | ~600 |
+| `commands/assembly_pattern_commands.py` | Assembly patterns | ~580 |
+| `commands/spreadsheet_commands.py` | Spreadsheet formatting | ~480 |
+| `resources/icons.py` | 33 SVG icon definitions | ~540 |
+| `resources/theme.py` | Catppuccin Mocha QSS | ~1500 |
+
+**Total:** ~6,400+ lines of code
+
+---
+
+## Statistics Summary
+
+| Category | Count |
+|----------|-------|
+| Command Files | 6 |
+| Command Classes | 24+ |
+| Datum Creation Functions | 16 |
+| Icons Defined | 33 |
+| Toolbars Registered | 17 |
+| Menu Hierarchies | 7 major |
+| Native Commands Exposed | 66 |
+| Custom ZTools Commands | 14 |
+| Theme Colors | 26 |
+| Styled Widget Types | 50+ |
+
+---
+
+## Contributing
+
+ZTools follows FreeCAD's contribution guidelines. Key areas needing help:
+
+1. **Testing:** Manual testing on different platforms
+2. **Documentation:** User guides and tutorials
+3. **Translations:** Internationalization support
+4. **Bug Reports:** Issue tracking and reproduction
+
+---
+
+## License
+
+LGPL-3.0-or-later
+
+Compatible with FreeCAD's licensing model.
+
+---
+
+## Changelog
+
+### v0.3.0 (2026-01-25)
+- Added zSpreadsheet module with 9 formatting commands
+- Added Spreadsheet workbench integration (6 native commands)
+- Added 9 spreadsheet formatting icons
+
+### v0.2.0 (2026-01-25)
+- Added Assembly workbench integration (21 native commands)
+- Added Assembly Linear Pattern tool
+- Added Assembly Polar Pattern tool
+- Added assembly pattern icons
+
+### v0.1.0 (2026-01-24)
+- Initial release
+- Custom attachment system for datums
+- 16 datum creation functions
+- Datum Creator GUI with auto-detection
+- Rotated Linear Pattern
+- Enhanced Pocket (partial)
+- Catppuccin Mocha theme
+- 21 initial icons

reference/ztools/TODO_ATTACHMENT_WORK.md

@@ -0,0 +1,58 @@
+# Datum Attachment Work - In Progress
+
+## Context
+Implementing proper FreeCAD attachment for datum objects to avoid "deactivated attachment mode" warnings.
+The pattern is adding `source_object` and `source_subname` parameters to each datum function and using `_setup_datum_attachment()` with appropriate MapModes.
+
+## Completed Functions (in core.py)
+
+### Planes
+- `plane_offset_from_face` - MapMode='FlatFace'
+- `plane_midplane` - MapMode='TwoFace'
+- `plane_from_3_points` - MapMode='ThreePointPlane'
+- `plane_normal_to_edge` - MapMode='NormalToPath'
+- `plane_angled` - MapMode='FlatFace' with rotation offset
+- `plane_tangent_to_cylinder` - MapMode='Tangent'
+
+### Axes
+- `axis_from_2_points` - MapMode='TwoPointLine'
+- `axis_from_edge` - MapMode='ObjectXY'
+- `axis_cylinder_center` - MapMode='ObjectZ'
+- `axis_intersection_planes` - MapMode='TwoFace'
+
+### Points
+- `point_at_vertex` - MapMode='Vertex'
+
+## Remaining Functions to Update (in core.py)
+
+- `point_at_coordinates` - No attachment needed (explicit coordinates), but could use 'Translate' mode
+- `point_on_edge` - Use MapMode='OnEdge' with MapPathParameter for position
+- `point_center_of_face` - Use MapMode='CenterOfCurvature' or similar
+- `point_center_of_circle` - Use MapMode='CenterOfCurvature'
+
+## After core.py Updates
+
+Update `datum_commands.py` to pass source references to the remaining point functions:
+- `create_point_at_vertex` - already done
+- `create_point_on_edge` - needs update
+- `create_point_center_face` - needs update  
+- `create_point_center_circle` - needs update
+
+## Pattern for Updates
+
+1. Add parameters to function signature:
+   ```python
+   source_object: Optional[App.DocumentObject] = None,
+   source_subname: Optional[str] = None,
+   ```
+
+2. In the body section, use attachment instead of placement:
+   ```python
+   if source_object and source_subname:
+       support = [(source_object, source_subname)]
+       _setup_datum_attachment(point, support, "MapMode")
+   else:
+       _setup_datum_placement(point, App.Placement(...))
+   ```
+
+3. Update datum_commands.py to extract and pass source references from selection.

reference/ztools/package.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<package format="1" xmlns="https://wiki.freecad.org/Package_Metadata">
+
+  <name>ZTools</name>
+
+  <description>Extended PartDesign workbench with velocity-focused tools and advanced datum creation.</description>
+
+  <version>0.1.0</version>
+
+  <date>2026-01-24</date>
+
+  <license file="LICENSE">LGPL-3.0-or-later</license>
+
+  <content>
+    <workbench>
+      <name>ZTools</name>
+      <classname>ZToolsWorkbench</classname>
+      <subdirectory>./ztools</subdirectory>
+    </workbench>
+  </content>
+
+  <!-- Kindred Create extensions -->
+  <kindred>
+    <min_create_version>0.1.0</min_create_version>
+    <load_priority>50</load_priority>
+    <pure_python>true</pure_python>
+    <dependencies>
+      <dependency>sdk</dependency>
+    </dependencies>
+    <contexts>
+      <context id="partdesign.body" action="inject"/>
+      <context id="partdesign.feature" action="inject"/>
+    </contexts>
+  </kindred>
+
+</package>

reference/ztools/partdesign.md

@@ -0,0 +1,591 @@
+# FreeCAD 1.0.2 PartDesign Workbench Command Reference
+
+## Overview
+
+The PartDesign Workbench uses a **feature-based parametric methodology** where a component is represented by a Body container. Features are cumulative—each builds on the result of preceding features. Most features are based on parametric sketches and are either additive (adding material) or subtractive (removing material).
+
+FreeCAD 1.0 introduced significant improvements including **Topological Naming Problem (TNP) mitigation**, making parametric models more stable when earlier features are modified.
+
+---
+
+## Structure & Containers
+
+### Body
+The fundamental container for PartDesign features. Defines a local coordinate system and contains all features that define a single solid component.
+
+```python
+body = doc.addObject('PartDesign::Body', 'Body')
+```
+
+**Properties:**
+- `Tip` — The feature representing the current state of the body
+- `BaseFeature` — Optional external solid to build upon
+- `Origin` — Contains reference planes (XY, XZ, YZ) and axes (X, Y, Z)
+
+### Part Container
+Groups multiple Bodies for organization. Not a PartDesign-specific object but commonly used.
+
+```python
+part = doc.addObject('App::Part', 'Part')
+```
+
+---
+
+## Sketch Tools
+
+| Command | Description |
+|---------|-------------|
+| **Create Sketch** | Creates a new sketch on a selected face or datum plane |
+| **Attach Sketch** | Attaches a sketch to geometry from the active body |
+| **Edit Sketch** | Opens selected sketch for editing |
+| **Validate Sketch** | Verifies tolerance of points and adjusts them |
+| **Check Geometry** | Checks geometry for errors |
+
+```python
+# Create sketch attached to XY plane
+sketch = body.newObject('Sketcher::SketchObject', 'Sketch')
+sketch.AttachmentSupport = [(body.getObject('Origin').getObject('XY_Plane'), '')]
+sketch.MapMode = 'FlatFace'
+```
+
+---
+
+## Reference Geometry (Datums)
+
+### Datum Plane
+Creates a reference plane for sketch attachment or as a mirror/pattern reference.
+
+```python
+plane = body.newObject('PartDesign::Plane', 'DatumPlane')
+plane.AttachmentSupport = [(face_reference, '')]
+plane.MapMode = 'FlatFace'
+plane.Offset = App.Vector(0, 0, 10)  # Offset along normal
+```
+
+### Datum Line
+Creates a reference axis for revolutions, grooves, or patterns.
+
+```python
+line = body.newObject('PartDesign::Line', 'DatumLine')
+line.AttachmentSupport = [(edge_reference, '')]
+line.MapMode = 'ObjectXY'
+```
+
+### Datum Point
+Creates a reference point for geometry attachment.
+
+```python
+point = body.newObject('PartDesign::Point', 'DatumPoint')
+point.AttachmentSupport = [(vertex_reference, '')]
+```
+
+### Local Coordinate System
+Creates a local coordinate system (LCS) attached to datum geometry.
+
+```python
+lcs = body.newObject('PartDesign::CoordinateSystem', 'LocalCS')
+```
+
+### Shape Binder
+References geometry from a single parent object.
+
+```python
+binder = body.newObject('PartDesign::ShapeBinder', 'ShapeBinder')
+binder.Support = [(external_object, ['Face1'])]
+```
+
+### SubShapeBinder
+References geometry from one or more parent objects (more flexible than ShapeBinder).
+
+```python
+subbinder = body.newObject('PartDesign::SubShapeBinder', 'SubShapeBinder')
+subbinder.Support = [(obj1, ['Face1']), (obj2, ['Edge2'])]
+```
+
+### Clone
+Creates a clone of a selected body.
+
+```python
+clone = doc.addObject('PartDesign::FeatureBase', 'Clone')
+clone.BaseFeature = source_body
+```
+
+---
+
+## Additive Features (Add Material)
+
+### Pad
+Extrudes a sketch profile to create a solid.
+
+```python
+pad = body.newObject('PartDesign::Pad', 'Pad')
+pad.Profile = sketch
+pad.Length = 20.0
+pad.Type = 0  # 0=Dimension, 1=UpToLast, 2=UpToFirst, 3=UpToFace, 4=TwoLengths, 5=UpToShape
+pad.Reversed = False
+pad.Midplane = False
+pad.Symmetric = False
+pad.Length2 = 10.0  # For TwoLengths type
+pad.UseCustomVector = False
+pad.Direction = App.Vector(0, 0, 1)
+pad.TaperAngle = 0.0  # Draft angle (new in 1.0)
+pad.TaperAngle2 = 0.0
+```
+
+**Type Options:**
+| Value | Mode | Description |
+|-------|------|-------------|
+| 0 | Dimension | Fixed length |
+| 1 | UpToLast | Extends to last face in direction |
+| 2 | UpToFirst | Extends to first face encountered |
+| 3 | UpToFace | Extends to selected face |
+| 4 | TwoLengths | Extends in both directions |
+| 5 | UpToShape | Extends to selected shape (new in 1.0) |
+
+### Revolution
+Creates a solid by revolving a sketch around an axis.
+
+```python
+revolution = body.newObject('PartDesign::Revolution', 'Revolution')
+revolution.Profile = sketch
+revolution.Axis = (body.getObject('Origin').getObject('Z_Axis'), [''])
+revolution.Angle = 360.0
+revolution.Midplane = False
+revolution.Reversed = False
+```
+
+### Additive Loft
+Creates a solid by transitioning between two or more sketch profiles.
+
+```python
+loft = body.newObject('PartDesign::AdditiveLoft', 'AdditiveLoft')
+loft.Profile = sketch1
+loft.Sections = [sketch2, sketch3]
+loft.Ruled = False
+loft.Closed = False
+```
+
+### Additive Pipe (Sweep)
+Creates a solid by sweeping a profile along a path.
+
+```python
+pipe = body.newObject('PartDesign::AdditivePipe', 'AdditivePipe')
+pipe.Profile = profile_sketch
+pipe.Spine = path_sketch  # or (object, ['Edge1', 'Edge2'])
+pipe.Transition = 0  # 0=Transformed, 1=RightCorner, 2=RoundCorner
+pipe.Mode = 0  # 0=Standard, 1=Fixed, 2=Frenet, 3=Auxiliary
+pipe.Auxiliary = None  # Auxiliary spine for Mode=3
+```
+
+### Additive Helix
+Creates a solid by sweeping a sketch along a helix.
+
+```python
+helix = body.newObject('PartDesign::AdditiveHelix', 'AdditiveHelix')
+helix.Profile = sketch
+helix.Axis = (body.getObject('Origin').getObject('Z_Axis'), [''])
+helix.Pitch = 5.0
+helix.Height = 30.0
+helix.Turns = 6.0
+helix.Mode = 0  # 0=pitch-height, 1=pitch-turns, 2=height-turns
+helix.LeftHanded = False
+helix.Reversed = False
+helix.Angle = 0.0  # Taper angle
+helix.Growth = 0.0  # Radius growth per turn
+```
+
+### Additive Primitives
+Direct primitive creation without sketches.
+
+```python
+# Box
+box = body.newObject('PartDesign::AdditiveBox', 'Box')
+box.Length = 10.0
+box.Width = 10.0
+box.Height = 10.0
+
+# Cylinder
+cyl = body.newObject('PartDesign::AdditiveCylinder', 'Cylinder')
+cyl.Radius = 5.0
+cyl.Height = 20.0
+cyl.Angle = 360.0
+
+# Sphere
+sphere = body.newObject('PartDesign::AdditiveSphere', 'Sphere')
+sphere.Radius = 10.0
+sphere.Angle1 = -90.0
+sphere.Angle2 = 90.0
+sphere.Angle3 = 360.0
+
+# Cone
+cone = body.newObject('PartDesign::AdditiveCone', 'Cone')
+cone.Radius1 = 10.0
+cone.Radius2 = 5.0
+cone.Height = 15.0
+cone.Angle = 360.0
+
+# Ellipsoid
+ellipsoid = body.newObject('PartDesign::AdditiveEllipsoid', 'Ellipsoid')
+ellipsoid.Radius1 = 10.0
+ellipsoid.Radius2 = 5.0
+ellipsoid.Radius3 = 8.0
+
+# Torus
+torus = body.newObject('PartDesign::AdditiveTorus', 'Torus')
+torus.Radius1 = 20.0
+torus.Radius2 = 5.0
+
+# Prism
+prism = body.newObject('PartDesign::AdditivePrism', 'Prism')
+prism.Polygon = 6
+prism.Circumradius = 10.0
+prism.Height = 20.0
+
+# Wedge
+wedge = body.newObject('PartDesign::AdditiveWedge', 'Wedge')
+wedge.Xmin = 0.0
+wedge.Xmax = 10.0
+wedge.Ymin = 0.0
+wedge.Ymax = 10.0
+wedge.Zmin = 0.0
+wedge.Zmax = 10.0
+wedge.X2min = 2.0
+wedge.X2max = 8.0
+wedge.Z2min = 2.0
+wedge.Z2max = 8.0
+```
+
+---
+
+## Subtractive Features (Remove Material)
+
+### Pocket
+Cuts material by extruding a sketch inward.
+
+```python
+pocket = body.newObject('PartDesign::Pocket', 'Pocket')
+pocket.Profile = sketch
+pocket.Length = 15.0
+pocket.Type = 0  # Same options as Pad, plus 1=ThroughAll
+pocket.Reversed = False
+pocket.Midplane = False
+pocket.Symmetric = False
+pocket.TaperAngle = 0.0
+```
+
+### Hole
+Creates parametric holes with threading options.
+
+```python
+hole = body.newObject('PartDesign::Hole', 'Hole')
+hole.Profile = sketch  # Sketch with center points
+hole.Diameter = 6.0
+hole.Depth = 15.0
+hole.DepthType = 0  # 0=Dimension, 1=ThroughAll
+hole.Threaded = True
+hole.ThreadType = 0  # 0=None, 1=ISOMetricCoarse, 2=ISOMetricFine, 3=UNC, 4=UNF, 5=NPT, etc.
+hole.ThreadSize = 'M6'
+hole.ThreadFit = 0  # 0=Standard, 1=Close
+hole.ThreadDirection = 0  # 0=Right, 1=Left
+hole.HoleCutType = 0  # 0=None, 1=Counterbore, 2=Countersink
+hole.HoleCutDiameter = 10.0
+hole.HoleCutDepth = 3.0
+hole.HoleCutCountersinkAngle = 90.0
+hole.DrillPoint = 0  # 0=Flat, 1=Angled
+hole.DrillPointAngle = 118.0
+hole.DrillForDepth = False
+```
+
+**Thread Types:**
+- ISO Metric Coarse/Fine
+- UNC/UNF (Unified National)
+- NPT/NPTF (National Pipe Thread)
+- BSW/BSF (British Standard)
+- UTS (Unified Thread Standard)
+
+### Groove
+Creates a cut by revolving a sketch around an axis (subtractive revolution).
+
+```python
+groove = body.newObject('PartDesign::Groove', 'Groove')
+groove.Profile = sketch
+groove.Axis = (body.getObject('Origin').getObject('Z_Axis'), [''])
+groove.Angle = 360.0
+groove.Midplane = False
+groove.Reversed = False
+```
+
+### Subtractive Loft
+Cuts by transitioning between profiles.
+
+```python
+subloft = body.newObject('PartDesign::SubtractiveLoft', 'SubtractiveLoft')
+subloft.Profile = sketch1
+subloft.Sections = [sketch2]
+```
+
+### Subtractive Pipe
+Cuts by sweeping a profile along a path.
+
+```python
+subpipe = body.newObject('PartDesign::SubtractivePipe', 'SubtractivePipe')
+subpipe.Profile = profile_sketch
+subpipe.Spine = path_sketch
+```
+
+### Subtractive Helix
+Cuts by sweeping along a helix (e.g., for threads).
+
+```python
+subhelix = body.newObject('PartDesign::SubtractiveHelix', 'SubtractiveHelix')
+subhelix.Profile = thread_profile_sketch
+subhelix.Axis = (body.getObject('Origin').getObject('Z_Axis'), [''])
+subhelix.Pitch = 1.0
+subhelix.Height = 10.0
+```
+
+### Subtractive Primitives
+Same primitives as additive, but subtract material:
+- `PartDesign::SubtractiveBox`
+- `PartDesign::SubtractiveCylinder`
+- `PartDesign::SubtractiveSphere`
+- `PartDesign::SubtractiveCone`
+- `PartDesign::SubtractiveEllipsoid`
+- `PartDesign::SubtractiveTorus`
+- `PartDesign::SubtractivePrism`
+- `PartDesign::SubtractiveWedge`
+
+---
+
+## Transformation Features (Patterns)
+
+### Mirrored
+Creates a mirror copy of features across a plane.
+
+```python
+mirrored = body.newObject('PartDesign::Mirrored', 'Mirrored')
+mirrored.Originals = [pad, pocket]
+mirrored.MirrorPlane = (body.getObject('Origin').getObject('XZ_Plane'), [''])
+```
+
+### Linear Pattern
+Creates copies in a linear arrangement.
+
+```python
+linear = body.newObject('PartDesign::LinearPattern', 'LinearPattern')
+linear.Originals = [pocket]
+linear.Direction = (body.getObject('Origin').getObject('X_Axis'), [''])
+linear.Length = 100.0
+linear.Occurrences = 5
+linear.Mode = 0  # 0=OverallLength, 1=Offset
+```
+
+### Polar Pattern
+Creates copies in a circular arrangement.
+
+```python
+polar = body.newObject('PartDesign::PolarPattern', 'PolarPattern')
+polar.Originals = [pocket]
+polar.Axis = (body.getObject('Origin').getObject('Z_Axis'), [''])
+polar.Angle = 360.0
+polar.Occurrences = 6
+polar.Mode = 0  # 0=OverallAngle, 1=Offset
+```
+
+### MultiTransform
+Combines multiple transformations (mirrored, linear, polar, scaled).
+
+```python
+multi = body.newObject('PartDesign::MultiTransform', 'MultiTransform')
+multi.Originals = [pocket]
+
+# Add transformations (created within MultiTransform)
+# Typically done via GUI or by setting Transformations property
+multi.Transformations = [mirrored_transform, linear_transform]
+```
+
+### Scaled
+Scales features (only available within MultiTransform).
+
+```python
+# Only accessible as part of MultiTransform
+scaled = body.newObject('PartDesign::Scaled', 'Scaled')
+scaled.Factor = 0.5
+scaled.Occurrences = 3
+```
+
+---
+
+## Dress-Up Features (Edge/Face Treatment)
+
+### Fillet
+Rounds edges with a specified radius.
+
+```python
+fillet = body.newObject('PartDesign::Fillet', 'Fillet')
+fillet.Base = (pad, ['Edge1', 'Edge5', 'Edge9'])
+fillet.Radius = 2.0
+```
+
+### Chamfer
+Bevels edges.
+
+```python
+chamfer = body.newObject('PartDesign::Chamfer', 'Chamfer')
+chamfer.Base = (pad, ['Edge2', 'Edge6'])
+chamfer.ChamferType = 'Equal Distance'  # or 'Two Distances' or 'Distance and Angle'
+chamfer.Size = 1.5
+chamfer.Size2 = 2.0  # For asymmetric
+chamfer.Angle = 45.0  # For 'Distance and Angle'
+```
+
+### Draft
+Applies angular draft to faces (for mold release).
+
+```python
+draft = body.newObject('PartDesign::Draft', 'Draft')
+draft.Base = (pad, ['Face2', 'Face4'])
+draft.Angle = 3.0  # Degrees
+draft.NeutralPlane = (body.getObject('Origin').getObject('XY_Plane'), [''])
+draft.PullDirection = App.Vector(0, 0, 1)
+draft.Reversed = False
+```
+
+### Thickness
+Creates a shell by hollowing out a solid, keeping selected faces open.
+
+```python
+thickness = body.newObject('PartDesign::Thickness', 'Thickness')
+thickness.Base = (pad, ['Face6'])  # Faces to remove (open)
+thickness.Value = 2.0  # Wall thickness
+thickness.Mode = 0  # 0=Skin, 1=Pipe, 2=RectoVerso
+thickness.Join = 0  # 0=Arc, 1=Intersection
+thickness.Reversed = False
+```
+
+---
+
+## Boolean Operations
+
+### Boolean
+Imports bodies and applies boolean operations.
+
+```python
+boolean = body.newObject('PartDesign::Boolean', 'Boolean')
+boolean.Type = 0  # 0=Fuse, 1=Cut, 2=Common (intersection)
+boolean.Bodies = [other_body1, other_body2]
+```
+
+---
+
+## Context Menu Commands
+
+| Command | Description |
+|---------|-------------|
+| **Set Tip** | Sets selected feature as the body's current state (tip) |
+| **Move object to other body** | Transfers feature to a different body |
+| **Move object after other object** | Reorders features in the tree |
+| **Appearance** | Sets color and transparency |
+| **Color per face** | Assigns different colors to individual faces |
+
+```python
+# Set tip programmatically
+body.Tip = pocket
+
+# Move feature order
+doc.moveObject(feature, body, after_feature)
+```
+
+---
+
+## Additional Tools
+
+### Sprocket
+Creates a sprocket profile for chain drives.
+
+```python
+# Available via Gui.runCommand('PartDesign_Sprocket')
+```
+
+### Involute Gear
+Creates an involute gear profile.
+
+```python
+# Available via Gui.runCommand('PartDesign_InvoluteGear')
+```
+
+---
+
+## Common Properties (All Features)
+
+| Property | Type | Description |
+|----------|------|-------------|
+| `Label` | String | User-visible name |
+| `Placement` | Placement | Position and orientation |
+| `BaseFeature` | Link | Feature this builds upon |
+| `Shape` | Shape | Resulting geometry |
+
+---
+
+## Expression Binding
+
+All dimensional properties can be driven by expressions:
+
+```python
+pad.setExpression('Length', 'Spreadsheet.plate_height')
+fillet.setExpression('Radius', 'Spreadsheet.fillet_r * 0.5')
+hole.setExpression('Diameter', '<<Parameters>>.hole_dia')
+```
+
+---
+
+## Best Practices
+
+1. **Always work within a Body** — PartDesign features require a body container
+2. **Use fully constrained sketches** — Prevents unexpected behavior when parameters change
+3. **Leverage datum geometry** — Creates stable references that survive TNP issues
+4. **Name constraints** — Enables expression-based parametric design
+5. **Use spreadsheets** — Centralizes parameters for easy modification
+6. **Set meaningful Labels** — Internal Names are auto-generated; Labels are user-friendly
+7. **Check isSolid()** — Before subtractive operations, verify the body has solid geometry
+
+```python
+if not body.isSolid():
+    raise ValueError("Body must contain solid geometry for subtractive features")
+```
+
+---
+
+## FreeCAD 1.0 Changes
+
+| Change | Description |
+|--------|-------------|
+| **TNP Mitigation** | Topological naming more stable |
+| **UpToShape** | New Pad/Pocket type extending to arbitrary shapes |
+| **Draft Angle** | Taper angles on Pad/Pocket |
+| **Improved Hole** | More thread types, better UI |
+| **Assembly Integration** | Native assembly workbench |
+| **Arch → BIM** | Workbench rename |
+| **Path → CAM** | Workbench rename |
+
+---
+
+## Python Module Access
+
+```python
+import FreeCAD as App
+import FreeCADGui as Gui
+import Part
+import Sketcher
+import PartDesign
+import PartDesignGui
+
+# Access feature classes
+print(dir(PartDesign))
+# ['Additive', 'AdditiveBox', 'AdditiveCone', 'AdditiveCylinder', ...]
+```
+
+---
+
+*Document version: FreeCAD 1.0.2 / January 2026*
+*Reference: FreeCAD Wiki, GitHub FreeCAD-documentation, FreeCAD Forum*

reference/ztools/ztools/Init.py

@@ -0,0 +1,12 @@
+# ztools Addon Initialization
+# This file runs at FreeCAD startup (before GUI)
+
+import FreeCAD as App
+
+# The Catppuccin Mocha theme is now provided as a Preference Pack.
+# It will be automatically available in:
+#   Edit > Preferences > General > Preference packs > CatppuccinMocha
+#
+# No manual installation is required - FreeCAD's addon system handles it.
+
+App.Console.PrintLog("ztools addon loaded\n")

reference/ztools/ztools/InitGui.py

@@ -0,0 +1,367 @@
+# ztools Workbench for FreeCAD 1.0+
+# Extended PartDesign replacement with velocity-focused tools
+
+import FreeCAD as App
+import FreeCADGui as Gui
+
+
+class ZToolsWorkbench(Gui.Workbench):
+    """Extended PartDesign workbench with velocity-focused tools."""
+
+    MenuText = "ztools"
+    ToolTip = "Extended PartDesign replacement for faster CAD workflows"
+
+    # Catppuccin Mocha themed icon
+    Icon = """
+        /* XPM */
+        static char * ztools_xpm[] = {
+        "16 16 5 1",
+        " 	c None",
+        ".	c #313244",
+        "+	c #cba6f7",
+        "@	c #94e2d5",
+        "#	c #45475a",
+        "                ",
+        "  ############  ",
+        "  #..........#  ",
+        "  #.++++++++.#  ",
+        "  #.+......+.#  ",
+        "  #.....+++..#  ",
+        "  #....++....#  ",
+        "  #...++.....#  ",
+        "  #..++......#  ",
+        "  #.++.......#  ",
+        "  #.++++++++@#  ",
+        "  #..........#  ",
+        "  ############  ",
+        "                ",
+        "                ",
+        "                "};
+    """
+
+    def Initialize(self):
+        """Called on workbench first activation."""
+        # Load PartDesign and Sketcher workbenches to register their commands
+        # We need to actually activate them briefly to ensure commands are registered
+        # Activate dependent workbenches so their commands are registered.
+        # Use activateWorkbench() instead of calling Initialize() directly,
+        # since direct calls skip the C++ __Workbench__ injection step.
+        # Wrap each individually so one failure doesn't block the rest.
+        wb_list = Gui.listWorkbenches()
+        current_wb = Gui.activeWorkbench()
+        for wb_name in (
+            "PartDesignWorkbench",
+            "SketcherWorkbench",
+            "AssemblyWorkbench",
+            "SpreadsheetWorkbench",
+        ):
+            if wb_name in wb_list:
+                try:
+                    Gui.activateWorkbench(wb_name)
+                except Exception as e:
+                    App.Console.PrintWarning(f"Could not initialize {wb_name}: {e}\n")
+        # Restore ztools as the active workbench
+        try:
+            Gui.activateWorkbench("ZToolsWorkbench")
+        except Exception:
+            pass
+
+        # Command imports moved to module scope (after Gui.addWorkbench) so they
+        # are available before Initialize() runs.  See end of file.
+
+        # =====================================================================
+        # PartDesign Structure Tools
+        # =====================================================================
+        self.structure_tools = [
+            "PartDesign_Body",
+            "PartDesign_NewSketch",
+        ]
+
+        # =====================================================================
+        # PartDesign Reference Geometry (Datums)
+        # =====================================================================
+        self.partdesign_datum_tools = [
+            "PartDesign_Plane",
+            "PartDesign_Line",
+            "PartDesign_Point",
+            "PartDesign_CoordinateSystem",
+            "PartDesign_ShapeBinder",
+            "PartDesign_SubShapeBinder",
+            "PartDesign_Clone",
+        ]
+
+        # =====================================================================
+        # PartDesign Additive Features
+        # =====================================================================
+        self.additive_tools = [
+            "PartDesign_Pad",
+            "PartDesign_Revolution",
+            "PartDesign_AdditiveLoft",
+            "PartDesign_AdditivePipe",
+            "PartDesign_AdditiveHelix",
+        ]
+
+        # =====================================================================
+        # PartDesign Additive Primitives (compound command with dropdown)
+        # =====================================================================
+        self.additive_primitives = [
+            "PartDesign_CompPrimitiveAdditive",
+        ]
+
+        # =====================================================================
+        # PartDesign Subtractive Features
+        # =====================================================================
+        self.subtractive_tools = [
+            "PartDesign_Pocket",
+            "PartDesign_Hole",
+            "PartDesign_Groove",
+            "PartDesign_SubtractiveLoft",
+            "PartDesign_SubtractivePipe",
+            "PartDesign_SubtractiveHelix",
+        ]
+
+        # =====================================================================
+        # PartDesign Subtractive Primitives (compound command with dropdown)
+        # =====================================================================
+        self.subtractive_primitives = [
+            "PartDesign_CompPrimitiveSubtractive",
+        ]
+
+        # =====================================================================
+        # PartDesign Transformation Features (Patterns)
+        # =====================================================================
+        self.transformation_tools = [
+            "PartDesign_Mirrored",
+            "PartDesign_LinearPattern",
+            "PartDesign_PolarPattern",
+            "PartDesign_MultiTransform",
+        ]
+
+        # =====================================================================
+        # PartDesign Dress-Up Features
+        # =====================================================================
+        self.dressup_tools = [
+            "PartDesign_Fillet",
+            "PartDesign_Chamfer",
+            "PartDesign_Draft",
+            "PartDesign_Thickness",
+        ]
+
+        # =====================================================================
+        # PartDesign Boolean Operations
+        # =====================================================================
+        self.boolean_tools = [
+            "PartDesign_Boolean",
+        ]
+
+        # =====================================================================
+        # Sketcher Tools (commonly used with PartDesign)
+        # =====================================================================
+        self.sketcher_tools = [
+            "Sketcher_NewSketch",
+            "Sketcher_EditSketch",
+            "Sketcher_MapSketch",
+            "Sketcher_ValidateSketch",
+        ]
+
+        # =====================================================================
+        # ZTools Custom Tools
+        # =====================================================================
+        self.ztools_datum_tools = [
+            "ZTools_DatumCreator",
+            "ZTools_DatumManager",
+        ]
+
+        self.ztools_pattern_tools = [
+            "ZTools_RotatedLinearPattern",
+        ]
+
+        self.ztools_pocket_tools = [
+            "ZTools_EnhancedPocket",
+        ]
+
+        # =====================================================================
+        # Assembly Workbench Tools (FreeCAD 1.0+)
+        # =====================================================================
+        self.assembly_structure_tools = [
+            "Assembly_CreateAssembly",
+            "Assembly_InsertLink",
+            "Assembly_InsertNewPart",
+        ]
+
+        self.assembly_joint_tools = [
+            "Assembly_CreateJointFixed",
+            "Assembly_CreateJointRevolute",
+            "Assembly_CreateJointCylindrical",
+            "Assembly_CreateJointSlider",
+            "Assembly_CreateJointBall",
+            "Assembly_CreateJointDistance",
+            "Assembly_CreateJointParallel",
+            "Assembly_CreateJointPerpendicular",
+            "Assembly_CreateJointAngle",
+            "Assembly_CreateJointRackPinion",
+            "Assembly_CreateJointScrew",
+            "Assembly_CreateJointGears",
+            "Assembly_CreateJointBelt",
+        ]
+
+        self.assembly_management_tools = [
+            "Assembly_ToggleGrounded",
+            "Assembly_SolveAssembly",
+            "Assembly_CreateView",
+            "Assembly_CreateBom",
+            "Assembly_ExportASMT",
+        ]
+
+        # =====================================================================
+        # ZTools Assembly Pattern Tools
+        # =====================================================================
+        self.ztools_assembly_tools = [
+            "ZTools_AssemblyLinearPattern",
+            "ZTools_AssemblyPolarPattern",
+        ]
+
+        # =====================================================================
+        # Spreadsheet Workbench Tools
+        # =====================================================================
+        self.spreadsheet_tools = [
+            "Spreadsheet_CreateSheet",
+            "Spreadsheet_Import",
+            "Spreadsheet_Export",
+            "Spreadsheet_SetAlias",
+            "Spreadsheet_MergeCells",
+            "Spreadsheet_SplitCell",
+        ]
+
+        # =====================================================================
+        # ZTools Spreadsheet Formatting Tools
+        # =====================================================================
+        self.ztools_spreadsheet_tools = [
+            "ZTools_SpreadsheetStyleBold",
+            "ZTools_SpreadsheetStyleItalic",
+            "ZTools_SpreadsheetStyleUnderline",
+            "ZTools_SpreadsheetAlignLeft",
+            "ZTools_SpreadsheetAlignCenter",
+            "ZTools_SpreadsheetAlignRight",
+            "ZTools_SpreadsheetBgColor",
+            "ZTools_SpreadsheetTextColor",
+            "ZTools_SpreadsheetQuickAlias",
+        ]
+
+        # =====================================================================
+        # Append Toolbars
+        # =====================================================================
+        self.appendToolbar("Structure", self.structure_tools)
+        self.appendToolbar("Sketcher", self.sketcher_tools)
+        self.appendToolbar("Datums", self.partdesign_datum_tools)
+        self.appendToolbar("Additive", self.additive_tools + self.additive_primitives)
+        self.appendToolbar(
+            "Subtractive", self.subtractive_tools + self.subtractive_primitives
+        )
+        self.appendToolbar("Transformations", self.transformation_tools)
+        self.appendToolbar("Dress-Up", self.dressup_tools)
+        self.appendToolbar("Boolean", self.boolean_tools)
+        self.appendToolbar("Assembly", self.assembly_structure_tools)
+        self.appendToolbar("Assembly Joints", self.assembly_joint_tools)
+        self.appendToolbar("Assembly Management", self.assembly_management_tools)
+        self.appendToolbar("ztools Datums", self.ztools_datum_tools)
+        self.appendToolbar("ztools Patterns", self.ztools_pattern_tools)
+        self.appendToolbar("ztools Features", self.ztools_pocket_tools)
+        self.appendToolbar("ztools Assembly", self.ztools_assembly_tools)
+        self.appendToolbar("Spreadsheet", self.spreadsheet_tools)
+        self.appendToolbar("ztools Spreadsheet", self.ztools_spreadsheet_tools)
+
+        # =====================================================================
+        # Append Menus
+        # =====================================================================
+        self.appendMenu("Structure", self.structure_tools)
+        self.appendMenu("Sketch", self.sketcher_tools)
+        self.appendMenu(["PartDesign", "Datums"], self.partdesign_datum_tools)
+        self.appendMenu(
+            ["PartDesign", "Additive"], self.additive_tools + self.additive_primitives
+        )
+        self.appendMenu(
+            ["PartDesign", "Subtractive"],
+            self.subtractive_tools + self.subtractive_primitives,
+        )
+        self.appendMenu(["PartDesign", "Transformations"], self.transformation_tools)
+        self.appendMenu(["PartDesign", "Dress-Up"], self.dressup_tools)
+        self.appendMenu(["PartDesign", "Boolean"], self.boolean_tools)
+        self.appendMenu(["Assembly", "Structure"], self.assembly_structure_tools)
+        self.appendMenu(["Assembly", "Joints"], self.assembly_joint_tools)
+        self.appendMenu(["Assembly", "Management"], self.assembly_management_tools)
+        self.appendMenu(["Spreadsheet", "Edit"], self.spreadsheet_tools)
+        self.appendMenu(["Spreadsheet", "Format"], self.ztools_spreadsheet_tools)
+        self.appendMenu(
+            "ztools",
+            self.ztools_datum_tools
+            + self.ztools_pattern_tools
+            + self.ztools_pocket_tools
+            + self.ztools_assembly_tools
+            + self.ztools_spreadsheet_tools,
+        )
+
+        App.Console.PrintMessage("ztools workbench initialized\n")
+
+    def Activated(self):
+        """Called when workbench is activated."""
+        App.Console.PrintMessage("ztools workbench activated\n")
+
+    def Deactivated(self):
+        """Called when workbench is deactivated."""
+        pass
+
+    def GetClassName(self):
+        return "Gui::PythonWorkbench"
+
+
+Gui.addWorkbench(ZToolsWorkbench())
+
+
+# ---------------------------------------------------------------------------
+# Eager command registration
+# ---------------------------------------------------------------------------
+# Import command modules at module scope so Gui.addCommand() calls run before
+# any workbench activates.  This ensures the PartDesign manipulator can
+# reference them regardless of workbench activation order (#52).
+
+from ztools.commands import (
+    assembly_pattern_commands,
+    datum_commands,
+    pattern_commands,
+    pocket_commands,
+    spreadsheet_commands,
+)
+
+# ---------------------------------------------------------------------------
+# WorkbenchManipulator: inject ZTools commands into PartDesign workbench
+# ---------------------------------------------------------------------------
+
+
+class _ZToolsPartDesignManipulator:
+    """Adds ZTools commands to PartDesign toolbars and menus."""
+
+    def modifyToolBars(self):
+        return [
+            {"append": "ZTools_DatumCreator", "toolBar": "Part Design Helper Features"},
+            {"append": "ZTools_DatumManager", "toolBar": "Part Design Helper Features"},
+            {
+                "append": "ZTools_EnhancedPocket",
+                "toolBar": "Part Design Modeling Features",
+            },
+            {
+                "append": "ZTools_RotatedLinearPattern",
+                "toolBar": "Part Design Transformation Features",
+            },
+        ]
+
+    def modifyMenuBar(self):
+        return [
+            {"append": "ZTools_DatumCreator", "menuItem": "PartDesign_Body"},
+            {"append": "ZTools_DatumManager", "menuItem": "PartDesign_Body"},
+            {"append": "ZTools_EnhancedPocket", "menuItem": "PartDesign_Body"},
+            {"append": "ZTools_RotatedLinearPattern", "menuItem": "PartDesign_Body"},
+        ]
+
+
+Gui.addWorkbenchManipulator(_ZToolsPartDesignManipulator())

reference/ztools/ztools/README.md

@@ -0,0 +1,123 @@
+# ztools - Extended PartDesign for FreeCAD
+
+Velocity-focused CAD tools extending FreeCAD 1.0+ PartDesign workbench.
+
+## Installation
+
+### Manual Installation
+
+1. Copy the `ztools` folder to your FreeCAD Mod directory:
+   - **Linux**: `~/.local/share/FreeCAD/Mod/ztools/`
+   - **Windows**: `%APPDATA%\FreeCAD\Mod\ztools\`
+   - **macOS**: `~/Library/Application Support/FreeCAD/Mod/ztools/`
+
+2. Restart FreeCAD
+
+3. Select **ztools** from the workbench dropdown
+
+### Directory Structure
+
+```
+ztools/
+├── InitGui.py              # Workbench registration
+├── ztools/
+│   ├── __init__.py
+│   ├── datums/
+│   │   ├── __init__.py
+│   │   └── core.py         # Datum creation functions
+│   └── commands/
+│       ├── __init__.py
+│       └── datum_commands.py  # GUI commands
+├── setup.cfg
+└── README.md
+```
+
+## Module 1: Datum Tools
+
+### Datum Creator (GUI)
+
+Unified task panel for creating:
+
+**Planes**
+- Offset from Face
+- Midplane (2 parallel faces)
+- 3 Points
+- Normal to Edge (at parameter)
+- Angled from Face (about edge)
+- Tangent to Cylinder
+
+**Axes**
+- 2 Points
+- From Edge
+- Cylinder Center
+- Plane Intersection
+
+**Points**
+- At Vertex
+- XYZ Coordinates
+- On Edge (at parameter)
+- Face Center
+- Circle Center
+
+### Options
+
+- **Link to Spreadsheet**: Creates aliases in Spreadsheet for parametric control
+- **Add to Active Body**: Creates PartDesign datums vs Part geometry
+- **Custom Name**: Override auto-naming (e.g., `ZPlane_Offset_001`)
+
+### Python API
+
+```python
+from ztools.datums import (
+    plane_offset_from_face,
+    plane_midplane,
+    axis_cylinder_center,
+    point_at_coordinates,
+)
+
+doc = App.ActiveDocument
+body = doc.getObject('Body')
+
+# Offset plane from selected face
+face = body.Shape.Faces[0]
+plane = plane_offset_from_face(face, 15.0, body=body, link_spreadsheet=True)
+
+# Midplane between two faces
+mid = plane_midplane(face1, face2, name="MidPlane_Custom")
+
+# Axis at cylinder center
+cyl_face = body.Shape.Faces[2]
+axis = axis_cylinder_center(cyl_face, body=body)
+
+# Point at coordinates with spreadsheet link
+pt = point_at_coordinates(50, 25, 0, link_spreadsheet=True)
+```
+
+### Metadata
+
+All ztools datums store creation metadata in custom properties:
+
+- `ZTools_Type`: Creation method (e.g., "offset_from_face")
+- `ZTools_Params`: JSON-encoded parameters
+
+Access via:
+```python
+plane = doc.getObject('ZPlane_Offset_001')
+print(plane.ZTools_Type)      # "offset_from_face"
+print(plane.ZTools_Params)    # {"distance": 15.0, ...}
+```
+
+## Roadmap
+
+- [ ] **Module 2**: Enhanced Pad/Pocket (multi-body, draft angles, lip/groove)
+- [ ] **Module 3**: Body operations (split, combine, shell improvements)
+- [ ] **Module 4**: Pattern tools (curve-driven, fill patterns)
+- [ ] **Datum Manager**: Panel to list/toggle/rename all datums
+
+## License
+
+LGPL-2.1 (same as FreeCAD)
+
+## Contributing
+
+Kindred Systems LLC - Kansas City

reference/ztools/ztools/setup.cfg

@@ -0,0 +1,11 @@
+[metadata]
+name = ztools
+version = 0.1.0
+description = Extended PartDesign workbench for FreeCAD with velocity-focused tools
+author = Kindred Systems LLC
+license = LGPL-2.1
+url = https://github.com/kindredsystems/ztools
+
+[options]
+packages = find:
+python_requires = >=3.8

reference/ztools/ztools/ztools/__init__.py

@@ -0,0 +1,2 @@
+# ztools - Extended PartDesign for FreeCAD
+__version__ = "0.1.0"

reference/ztools/ztools/ztools/commands/__init__.py

@@ -0,0 +1,18 @@
+# ztools/commands - GUI commands
+from . import (
+    assembly_pattern_commands,
+    datum_commands,
+    datum_viewprovider,
+    pattern_commands,
+    pocket_commands,
+    spreadsheet_commands,
+)
+
+__all__ = [
+    "datum_commands",
+    "datum_viewprovider",
+    "pattern_commands",
+    "pocket_commands",
+    "assembly_pattern_commands",
+    "spreadsheet_commands",
+]

reference/ztools/ztools/ztools/commands/assembly_pattern_commands.py

@@ -0,0 +1,787 @@
+# ztools/commands/assembly_pattern_commands.py
+# Assembly patterning tools for FreeCAD 1.0+ Assembly workbench
+# Creates linear and polar patterns of assembly components
+
+import math
+
+import FreeCAD as App
+import FreeCADGui as Gui
+from PySide import QtCore, QtGui
+
+from ztools.resources.icons import get_icon
+
+# =============================================================================
+# Assembly Linear Pattern
+# =============================================================================
+
+
+class AssemblyLinearPatternTaskPanel:
+    """Task panel for creating linear patterns of assembly components."""
+
+    def __init__(self):
+        self.form = QtGui.QWidget()
+        self.setup_ui()
+        self.setup_selection_observer()
+        self.selected_components = []
+
+    def setup_ui(self):
+        layout = QtGui.QVBoxLayout(self.form)
+
+        # Component selection section
+        component_group = QtGui.QGroupBox("Components")
+        component_layout = QtGui.QVBoxLayout(component_group)
+
+        # Selection table
+        self.component_table = QtGui.QTableWidget()
+        self.component_table.setColumnCount(2)
+        self.component_table.setHorizontalHeaderLabels(["Component", "Remove"])
+        self.component_table.horizontalHeader().setStretchLastSection(False)
+        self.component_table.horizontalHeader().setSectionResizeMode(
+            0, QtGui.QHeaderView.Stretch
+        )
+        self.component_table.horizontalHeader().setSectionResizeMode(
+            1, QtGui.QHeaderView.Fixed
+        )
+        self.component_table.setColumnWidth(1, 60)
+        self.component_table.setMaximumHeight(120)
+        component_layout.addWidget(self.component_table)
+
+        # Selection hint
+        hint_label = QtGui.QLabel("Select assembly components in the 3D view")
+        hint_label.setStyleSheet("color: gray; font-style: italic;")
+        component_layout.addWidget(hint_label)
+
+        layout.addWidget(component_group)
+
+        # Pattern parameters section
+        params_group = QtGui.QGroupBox("Pattern Parameters")
+        params_layout = QtGui.QFormLayout(params_group)
+
+        # Direction
+        direction_layout = QtGui.QHBoxLayout()
+        self.dir_x_spin = QtGui.QDoubleSpinBox()
+        self.dir_x_spin.setRange(-1000, 1000)
+        self.dir_x_spin.setValue(1)
+        self.dir_x_spin.setDecimals(3)
+        self.dir_y_spin = QtGui.QDoubleSpinBox()
+        self.dir_y_spin.setRange(-1000, 1000)
+        self.dir_y_spin.setValue(0)
+        self.dir_y_spin.setDecimals(3)
+        self.dir_z_spin = QtGui.QDoubleSpinBox()
+        self.dir_z_spin.setRange(-1000, 1000)
+        self.dir_z_spin.setValue(0)
+        self.dir_z_spin.setDecimals(3)
+        direction_layout.addWidget(QtGui.QLabel("X:"))
+        direction_layout.addWidget(self.dir_x_spin)
+        direction_layout.addWidget(QtGui.QLabel("Y:"))
+        direction_layout.addWidget(self.dir_y_spin)
+        direction_layout.addWidget(QtGui.QLabel("Z:"))
+        direction_layout.addWidget(self.dir_z_spin)
+        params_layout.addRow("Direction:", direction_layout)
+
+        # Occurrences
+        self.occurrences_spin = QtGui.QSpinBox()
+        self.occurrences_spin.setRange(2, 100)
+        self.occurrences_spin.setValue(3)
+        params_layout.addRow("Occurrences:", self.occurrences_spin)
+
+        # Spacing mode
+        self.spacing_mode = QtGui.QComboBox()
+        self.spacing_mode.addItems(["Total Length", "Spacing"])
+        self.spacing_mode.currentIndexChanged.connect(self.on_spacing_mode_changed)
+        params_layout.addRow("Mode:", self.spacing_mode)
+
+        # Length/Spacing value
+        self.length_spin = QtGui.QDoubleSpinBox()
+        self.length_spin.setRange(0.001, 100000)
+        self.length_spin.setValue(100)
+        self.length_spin.setDecimals(3)
+        self.length_spin.setSuffix(" mm")
+        self.length_label = QtGui.QLabel("Total Length:")
+        params_layout.addRow(self.length_label, self.length_spin)
+
+        layout.addWidget(params_group)
+
+        # Options section
+        options_group = QtGui.QGroupBox("Options")
+        options_layout = QtGui.QVBoxLayout(options_group)
+
+        self.link_checkbox = QtGui.QCheckBox("Create as Links (recommended)")
+        self.link_checkbox.setChecked(True)
+        self.link_checkbox.setToolTip(
+            "Links reference the original component, reducing file size"
+        )
+        options_layout.addWidget(self.link_checkbox)
+
+        self.hide_original_checkbox = QtGui.QCheckBox("Hide original components")
+        self.hide_original_checkbox.setChecked(False)
+        options_layout.addWidget(self.hide_original_checkbox)
+
+        layout.addWidget(options_group)
+
+        layout.addStretch()
+
+    def setup_selection_observer(self):
+        """Set up observer to track selection changes."""
+
+        class SelectionObserver:
+            def __init__(self, panel):
+                self.panel = panel
+
+            def addSelection(self, doc, obj, sub, pos):
+                self.panel.on_selection_added(doc, obj, sub)
+
+            def removeSelection(self, doc, obj, sub):
+                self.panel.on_selection_removed(doc, obj, sub)
+
+            def clearSelection(self, doc):
+                pass
+
+        self.observer = SelectionObserver(self)
+        Gui.Selection.addObserver(self.observer)
+
+    def on_selection_added(self, doc_name, obj_name, sub):
+        """Handle new selection."""
+        doc = App.getDocument(doc_name)
+        if not doc:
+            return
+
+        obj = doc.getObject(obj_name)
+        if not obj:
+            return
+
+        # Check if this is an assembly component (App::Link or Part)
+        if not self._is_valid_component(obj):
+            return
+
+        # Avoid duplicates
+        if obj in self.selected_components:
+            return
+
+        self.selected_components.append(obj)
+        self._update_table()
+
+    def on_selection_removed(self, doc_name, obj_name, sub):
+        """Handle selection removal."""
+        doc = App.getDocument(doc_name)
+        if not doc:
+            return
+
+        obj = doc.getObject(obj_name)
+        if obj in self.selected_components:
+            self.selected_components.remove(obj)
+            self._update_table()
+
+    def _is_valid_component(self, obj):
+        """Check if object is a valid assembly component."""
+        valid_types = [
+            "App::Link",
+            "App::LinkGroup",
+            "Part::Feature",
+            "PartDesign::Body",
+            "App::Part",
+        ]
+        return obj.TypeId in valid_types
+
+    def _update_table(self):
+        """Update the component table."""
+        self.component_table.setRowCount(len(self.selected_components))
+
+        for i, comp in enumerate(self.selected_components):
+            # Component name
+            name_item = QtGui.QTableWidgetItem(comp.Label)
+            name_item.setFlags(name_item.flags() & ~QtCore.Qt.ItemIsEditable)
+            self.component_table.setItem(i, 0, name_item)
+
+            # Remove button
+            remove_btn = QtGui.QPushButton("X")
+            remove_btn.setMaximumWidth(40)
+            remove_btn.clicked.connect(
+                lambda checked, idx=i: self._remove_component(idx)
+            )
+            self.component_table.setCellWidget(i, 1, remove_btn)
+
+    def _remove_component(self, index):
+        """Remove component from selection."""
+        if 0 <= index < len(self.selected_components):
+            self.selected_components.pop(index)
+            self._update_table()
+
+    def on_spacing_mode_changed(self, index):
+        """Update label based on spacing mode."""
+        if index == 0:
+            self.length_label.setText("Total Length:")
+        else:
+            self.length_label.setText("Spacing:")
+
+    def accept(self):
+        """Create the linear pattern."""
+        Gui.Selection.removeObserver(self.observer)
+
+        if not self.selected_components:
+            App.Console.PrintError("No components selected for pattern\n")
+            return False
+
+        doc = App.ActiveDocument
+        if not doc:
+            return False
+
+        # Get parameters
+        direction = App.Vector(
+            self.dir_x_spin.value(),
+            self.dir_y_spin.value(),
+            self.dir_z_spin.value(),
+        )
+
+        if direction.Length < 1e-6:
+            App.Console.PrintError("Direction vector cannot be zero\n")
+            return False
+
+        direction.normalize()
+
+        occurrences = self.occurrences_spin.value()
+        length_value = self.length_spin.value()
+
+        if self.spacing_mode.currentIndex() == 0:
+            # Total length mode
+            spacing = length_value / (occurrences - 1) if occurrences > 1 else 0
+        else:
+            # Spacing mode
+            spacing = length_value
+
+        use_links = self.link_checkbox.isChecked()
+        hide_original = self.hide_original_checkbox.isChecked()
+
+        # Find parent assembly
+        assembly = self._find_parent_assembly(self.selected_components[0])
+
+        doc.openTransaction("Assembly Linear Pattern")
+
+        try:
+            created_objects = []
+
+            for comp in self.selected_components:
+                # Get base placement
+                if hasattr(comp, "Placement"):
+                    base_placement = comp.Placement
+                else:
+                    base_placement = App.Placement()
+
+                # Create pattern instances (skip i=0 as that's the original)
+                for i in range(1, occurrences):
+                    offset = direction * spacing * i
+                    new_placement = App.Placement(
+                        base_placement.Base + offset,
+                        base_placement.Rotation,
+                    )
+
+                    if use_links:
+                        # Create link to original
+                        if comp.TypeId == "App::Link":
+                            # Link to the linked object
+                            link_target = comp.LinkedObject
+                        else:
+                            link_target = comp
+
+                        new_obj = doc.addObject("App::Link", f"{comp.Label}_Pattern{i}")
+                        new_obj.LinkedObject = link_target
+                        new_obj.Placement = new_placement
+                    else:
+                        # Create copy
+                        new_obj = doc.copyObject(comp, False)
+                        new_obj.Label = f"{comp.Label}_Pattern{i}"
+                        new_obj.Placement = new_placement
+
+                    # Add to assembly if found
+                    if assembly and hasattr(assembly, "addObject"):
+                        assembly.addObject(new_obj)
+
+                    created_objects.append(new_obj)
+
+                # Hide original if requested
+                if hide_original and hasattr(comp, "ViewObject"):
+                    comp.ViewObject.Visibility = False
+
+            doc.commitTransaction()
+            doc.recompute()
+
+            App.Console.PrintMessage(
+                f"Created {len(created_objects)} pattern instances\n"
+            )
+
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to create pattern: {e}\n")
+            return False
+
+        return True
+
+    def reject(self):
+        """Cancel the operation."""
+        Gui.Selection.removeObserver(self.observer)
+        return True
+
+    def _find_parent_assembly(self, obj):
+        """Find the parent assembly of an object."""
+        doc = obj.Document
+
+        for candidate in doc.Objects:
+            if candidate.TypeId == "Assembly::AssemblyObject":
+                # Check if obj is in this assembly's group
+                if hasattr(candidate, "Group"):
+                    if obj in candidate.Group:
+                        return candidate
+                    # Check nested
+                    for member in candidate.Group:
+                        if hasattr(member, "Group") and obj in member.Group:
+                            return candidate
+
+        return None
+
+    def getStandardButtons(self):
+        return QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel
+
+
+class AssemblyLinearPatternCommand:
+    """Command to create a linear pattern of assembly components."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("assembly_linear_pattern"),
+            "MenuText": "Assembly Linear Pattern",
+            "ToolTip": "Create a linear pattern of assembly components",
+        }
+
+    def IsActive(self):
+        return App.ActiveDocument is not None
+
+    def Activated(self):
+        panel = AssemblyLinearPatternTaskPanel()
+        Gui.Control.showDialog(panel)
+
+
+# =============================================================================
+# Assembly Polar Pattern
+# =============================================================================
+
+
+class AssemblyPolarPatternTaskPanel:
+    """Task panel for creating polar patterns of assembly components."""
+
+    def __init__(self):
+        self.form = QtGui.QWidget()
+        self.setup_ui()
+        self.setup_selection_observer()
+        self.selected_components = []
+        self.axis_selection = None
+
+    def setup_ui(self):
+        layout = QtGui.QVBoxLayout(self.form)
+
+        # Component selection section
+        component_group = QtGui.QGroupBox("Components")
+        component_layout = QtGui.QVBoxLayout(component_group)
+
+        # Selection table
+        self.component_table = QtGui.QTableWidget()
+        self.component_table.setColumnCount(2)
+        self.component_table.setHorizontalHeaderLabels(["Component", "Remove"])
+        self.component_table.horizontalHeader().setStretchLastSection(False)
+        self.component_table.horizontalHeader().setSectionResizeMode(
+            0, QtGui.QHeaderView.Stretch
+        )
+        self.component_table.horizontalHeader().setSectionResizeMode(
+            1, QtGui.QHeaderView.Fixed
+        )
+        self.component_table.setColumnWidth(1, 60)
+        self.component_table.setMaximumHeight(100)
+        component_layout.addWidget(self.component_table)
+
+        hint_label = QtGui.QLabel("Select assembly components in the 3D view")
+        hint_label.setStyleSheet("color: gray; font-style: italic;")
+        component_layout.addWidget(hint_label)
+
+        layout.addWidget(component_group)
+
+        # Axis section
+        axis_group = QtGui.QGroupBox("Rotation Axis")
+        axis_layout = QtGui.QFormLayout(axis_group)
+
+        # Axis definition mode
+        self.axis_mode = QtGui.QComboBox()
+        self.axis_mode.addItems(["Custom Axis", "X Axis", "Y Axis", "Z Axis"])
+        self.axis_mode.currentIndexChanged.connect(self.on_axis_mode_changed)
+        axis_layout.addRow("Axis:", self.axis_mode)
+
+        # Custom axis direction
+        self.axis_widget = QtGui.QWidget()
+        axis_dir_layout = QtGui.QHBoxLayout(self.axis_widget)
+        axis_dir_layout.setContentsMargins(0, 0, 0, 0)
+        self.axis_x_spin = QtGui.QDoubleSpinBox()
+        self.axis_x_spin.setRange(-1, 1)
+        self.axis_x_spin.setValue(0)
+        self.axis_x_spin.setDecimals(3)
+        self.axis_x_spin.setSingleStep(0.1)
+        self.axis_y_spin = QtGui.QDoubleSpinBox()
+        self.axis_y_spin.setRange(-1, 1)
+        self.axis_y_spin.setValue(0)
+        self.axis_y_spin.setDecimals(3)
+        self.axis_y_spin.setSingleStep(0.1)
+        self.axis_z_spin = QtGui.QDoubleSpinBox()
+        self.axis_z_spin.setRange(-1, 1)
+        self.axis_z_spin.setValue(1)
+        self.axis_z_spin.setDecimals(3)
+        self.axis_z_spin.setSingleStep(0.1)
+        axis_dir_layout.addWidget(QtGui.QLabel("X:"))
+        axis_dir_layout.addWidget(self.axis_x_spin)
+        axis_dir_layout.addWidget(QtGui.QLabel("Y:"))
+        axis_dir_layout.addWidget(self.axis_y_spin)
+        axis_dir_layout.addWidget(QtGui.QLabel("Z:"))
+        axis_dir_layout.addWidget(self.axis_z_spin)
+        axis_layout.addRow("Direction:", self.axis_widget)
+
+        # Center point
+        center_layout = QtGui.QHBoxLayout()
+        self.center_x_spin = QtGui.QDoubleSpinBox()
+        self.center_x_spin.setRange(-100000, 100000)
+        self.center_x_spin.setValue(0)
+        self.center_x_spin.setDecimals(3)
+        self.center_y_spin = QtGui.QDoubleSpinBox()
+        self.center_y_spin.setRange(-100000, 100000)
+        self.center_y_spin.setValue(0)
+        self.center_y_spin.setDecimals(3)
+        self.center_z_spin = QtGui.QDoubleSpinBox()
+        self.center_z_spin.setRange(-100000, 100000)
+        self.center_z_spin.setValue(0)
+        self.center_z_spin.setDecimals(3)
+        center_layout.addWidget(QtGui.QLabel("X:"))
+        center_layout.addWidget(self.center_x_spin)
+        center_layout.addWidget(QtGui.QLabel("Y:"))
+        center_layout.addWidget(self.center_y_spin)
+        center_layout.addWidget(QtGui.QLabel("Z:"))
+        center_layout.addWidget(self.center_z_spin)
+        axis_layout.addRow("Center:", center_layout)
+
+        layout.addWidget(axis_group)
+
+        # Pattern parameters section
+        params_group = QtGui.QGroupBox("Pattern Parameters")
+        params_layout = QtGui.QFormLayout(params_group)
+
+        # Occurrences
+        self.occurrences_spin = QtGui.QSpinBox()
+        self.occurrences_spin.setRange(2, 100)
+        self.occurrences_spin.setValue(6)
+        params_layout.addRow("Occurrences:", self.occurrences_spin)
+
+        # Angle mode
+        self.angle_mode = QtGui.QComboBox()
+        self.angle_mode.addItems(["Full Circle (360)", "Custom Angle"])
+        self.angle_mode.currentIndexChanged.connect(self.on_angle_mode_changed)
+        params_layout.addRow("Mode:", self.angle_mode)
+
+        # Angle value
+        self.angle_spin = QtGui.QDoubleSpinBox()
+        self.angle_spin.setRange(0.001, 360)
+        self.angle_spin.setValue(360)
+        self.angle_spin.setDecimals(2)
+        self.angle_spin.setSuffix(" deg")
+        self.angle_spin.setEnabled(False)
+        params_layout.addRow("Total Angle:", self.angle_spin)
+
+        layout.addWidget(params_group)
+
+        # Options section
+        options_group = QtGui.QGroupBox("Options")
+        options_layout = QtGui.QVBoxLayout(options_group)
+
+        self.link_checkbox = QtGui.QCheckBox("Create as Links (recommended)")
+        self.link_checkbox.setChecked(True)
+        options_layout.addWidget(self.link_checkbox)
+
+        self.hide_original_checkbox = QtGui.QCheckBox("Hide original components")
+        self.hide_original_checkbox.setChecked(False)
+        options_layout.addWidget(self.hide_original_checkbox)
+
+        layout.addWidget(options_group)
+
+        layout.addStretch()
+
+    def setup_selection_observer(self):
+        """Set up observer to track selection changes."""
+
+        class SelectionObserver:
+            def __init__(self, panel):
+                self.panel = panel
+
+            def addSelection(self, doc, obj, sub, pos):
+                self.panel.on_selection_added(doc, obj, sub)
+
+            def removeSelection(self, doc, obj, sub):
+                self.panel.on_selection_removed(doc, obj, sub)
+
+            def clearSelection(self, doc):
+                pass
+
+        self.observer = SelectionObserver(self)
+        Gui.Selection.addObserver(self.observer)
+
+    def on_selection_added(self, doc_name, obj_name, sub):
+        """Handle new selection."""
+        doc = App.getDocument(doc_name)
+        if not doc:
+            return
+
+        obj = doc.getObject(obj_name)
+        if not obj:
+            return
+
+        # Check if this is an assembly component
+        if not self._is_valid_component(obj):
+            return
+
+        if obj in self.selected_components:
+            return
+
+        self.selected_components.append(obj)
+        self._update_table()
+
+    def on_selection_removed(self, doc_name, obj_name, sub):
+        """Handle selection removal."""
+        doc = App.getDocument(doc_name)
+        if not doc:
+            return
+
+        obj = doc.getObject(obj_name)
+        if obj in self.selected_components:
+            self.selected_components.remove(obj)
+            self._update_table()
+
+    def _is_valid_component(self, obj):
+        """Check if object is a valid assembly component."""
+        valid_types = [
+            "App::Link",
+            "App::LinkGroup",
+            "Part::Feature",
+            "PartDesign::Body",
+            "App::Part",
+        ]
+        return obj.TypeId in valid_types
+
+    def _update_table(self):
+        """Update the component table."""
+        self.component_table.setRowCount(len(self.selected_components))
+
+        for i, comp in enumerate(self.selected_components):
+            name_item = QtGui.QTableWidgetItem(comp.Label)
+            name_item.setFlags(name_item.flags() & ~QtCore.Qt.ItemIsEditable)
+            self.component_table.setItem(i, 0, name_item)
+
+            remove_btn = QtGui.QPushButton("X")
+            remove_btn.setMaximumWidth(40)
+            remove_btn.clicked.connect(
+                lambda checked, idx=i: self._remove_component(idx)
+            )
+            self.component_table.setCellWidget(i, 1, remove_btn)
+
+    def _remove_component(self, index):
+        """Remove component from selection."""
+        if 0 <= index < len(self.selected_components):
+            self.selected_components.pop(index)
+            self._update_table()
+
+    def on_axis_mode_changed(self, index):
+        """Update axis inputs based on mode."""
+        if index == 0:
+            # Custom axis
+            self.axis_widget.setEnabled(True)
+        else:
+            # Preset axis
+            self.axis_widget.setEnabled(False)
+            if index == 1:  # X
+                self.axis_x_spin.setValue(1)
+                self.axis_y_spin.setValue(0)
+                self.axis_z_spin.setValue(0)
+            elif index == 2:  # Y
+                self.axis_x_spin.setValue(0)
+                self.axis_y_spin.setValue(1)
+                self.axis_z_spin.setValue(0)
+            elif index == 3:  # Z
+                self.axis_x_spin.setValue(0)
+                self.axis_y_spin.setValue(0)
+                self.axis_z_spin.setValue(1)
+
+    def on_angle_mode_changed(self, index):
+        """Update angle input based on mode."""
+        if index == 0:
+            # Full circle
+            self.angle_spin.setValue(360)
+            self.angle_spin.setEnabled(False)
+        else:
+            # Custom angle
+            self.angle_spin.setEnabled(True)
+
+    def accept(self):
+        """Create the polar pattern."""
+        Gui.Selection.removeObserver(self.observer)
+
+        if not self.selected_components:
+            App.Console.PrintError("No components selected for pattern\n")
+            return False
+
+        doc = App.ActiveDocument
+        if not doc:
+            return False
+
+        # Get axis
+        axis = App.Vector(
+            self.axis_x_spin.value(),
+            self.axis_y_spin.value(),
+            self.axis_z_spin.value(),
+        )
+
+        if axis.Length < 1e-6:
+            App.Console.PrintError("Axis vector cannot be zero\n")
+            return False
+
+        axis.normalize()
+
+        # Get center
+        center = App.Vector(
+            self.center_x_spin.value(),
+            self.center_y_spin.value(),
+            self.center_z_spin.value(),
+        )
+
+        occurrences = self.occurrences_spin.value()
+        total_angle = self.angle_spin.value()
+
+        # Calculate angle increment
+        if self.angle_mode.currentIndex() == 0:
+            # Full circle - don't include last (would overlap first)
+            angle_step = 360.0 / occurrences
+        else:
+            # Custom angle
+            angle_step = total_angle / (occurrences - 1) if occurrences > 1 else 0
+
+        use_links = self.link_checkbox.isChecked()
+        hide_original = self.hide_original_checkbox.isChecked()
+
+        # Find parent assembly
+        assembly = self._find_parent_assembly(self.selected_components[0])
+
+        doc.openTransaction("Assembly Polar Pattern")
+
+        try:
+            created_objects = []
+
+            for comp in self.selected_components:
+                # Get base placement
+                if hasattr(comp, "Placement"):
+                    base_placement = comp.Placement
+                else:
+                    base_placement = App.Placement()
+
+                # Create pattern instances
+                for i in range(1, occurrences):
+                    angle = angle_step * i
+
+                    # Create rotation around axis through center
+                    rotation = App.Rotation(axis, angle)
+
+                    # Calculate new position
+                    # Translate to origin, rotate, translate back
+                    base_pos = base_placement.Base
+                    relative_pos = base_pos - center
+                    rotated_pos = rotation.multVec(relative_pos)
+                    new_pos = rotated_pos + center
+
+                    # Combine rotations
+                    new_rotation = rotation.multiply(base_placement.Rotation)
+
+                    new_placement = App.Placement(new_pos, new_rotation)
+
+                    if use_links:
+                        if comp.TypeId == "App::Link":
+                            link_target = comp.LinkedObject
+                        else:
+                            link_target = comp
+
+                        new_obj = doc.addObject("App::Link", f"{comp.Label}_Polar{i}")
+                        new_obj.LinkedObject = link_target
+                        new_obj.Placement = new_placement
+                    else:
+                        new_obj = doc.copyObject(comp, False)
+                        new_obj.Label = f"{comp.Label}_Polar{i}"
+                        new_obj.Placement = new_placement
+
+                    if assembly and hasattr(assembly, "addObject"):
+                        assembly.addObject(new_obj)
+
+                    created_objects.append(new_obj)
+
+                if hide_original and hasattr(comp, "ViewObject"):
+                    comp.ViewObject.Visibility = False
+
+            doc.commitTransaction()
+            doc.recompute()
+
+            App.Console.PrintMessage(
+                f"Created {len(created_objects)} polar pattern instances\n"
+            )
+
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to create pattern: {e}\n")
+            return False
+
+        return True
+
+    def reject(self):
+        """Cancel the operation."""
+        Gui.Selection.removeObserver(self.observer)
+        return True
+
+    def _find_parent_assembly(self, obj):
+        """Find the parent assembly of an object."""
+        doc = obj.Document
+
+        for candidate in doc.Objects:
+            if candidate.TypeId == "Assembly::AssemblyObject":
+                if hasattr(candidate, "Group"):
+                    if obj in candidate.Group:
+                        return candidate
+                    for member in candidate.Group:
+                        if hasattr(member, "Group") and obj in member.Group:
+                            return candidate
+
+        return None
+
+    def getStandardButtons(self):
+        return QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel
+
+
+class AssemblyPolarPatternCommand:
+    """Command to create a polar pattern of assembly components."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("assembly_polar_pattern"),
+            "MenuText": "Assembly Polar Pattern",
+            "ToolTip": "Create a polar (circular) pattern of assembly components",
+        }
+
+    def IsActive(self):
+        return App.ActiveDocument is not None
+
+    def Activated(self):
+        panel = AssemblyPolarPatternTaskPanel()
+        Gui.Control.showDialog(panel)
+
+
+# =============================================================================
+# Register Commands
+# =============================================================================
+
+Gui.addCommand("ZTools_AssemblyLinearPattern", AssemblyLinearPatternCommand())
+Gui.addCommand("ZTools_AssemblyPolarPattern", AssemblyPolarPatternCommand())

reference/ztools/ztools/ztools/commands/datum_commands.py

@@ -0,0 +1,880 @@
+# ztools/commands/datum_commands.py
+# GUI commands and task panel for datum creation
+
+import FreeCAD as App
+import FreeCADGui as Gui
+import Part
+from PySide import QtCore, QtGui
+
+
+class SelectionItem:
+    """Represents a selected geometry item."""
+
+    def __init__(self, obj, subname, shape=None):
+        self.obj = obj
+        self.subname = subname
+        self.shape = shape
+        self.geo_type = self._determine_type()
+
+    def _determine_type(self):
+        """Determine the geometry type of this selection."""
+        if self.shape is None:
+            # Try to get shape from object
+            if hasattr(self.obj, "Shape"):
+                if self.subname and self.subname.startswith("Face"):
+                    try:
+                        self.shape = self.obj.Shape.getElement(self.subname)
+                    except Exception:
+                        pass
+                elif self.subname and self.subname.startswith("Edge"):
+                    try:
+                        self.shape = self.obj.Shape.getElement(self.subname)
+                    except Exception:
+                        pass
+                elif self.subname and self.subname.startswith("Vertex"):
+                    try:
+                        self.shape = self.obj.Shape.getElement(self.subname)
+                    except Exception:
+                        pass
+
+        if self.shape is None:
+            # Check if it's a datum plane object
+            type_id = getattr(self.obj, "TypeId", "")
+            if "Plane" in type_id or (
+                hasattr(self.obj, "Shape")
+                and self.obj.Shape.Faces
+                and self.obj.Shape.Faces[0].Surface.isPlanar()
+            ):
+                return "plane"
+            return "unknown"
+
+        if isinstance(self.shape, Part.Face):
+            # Check if it's a cylindrical face
+            if isinstance(self.shape.Surface, Part.Cylinder):
+                return "cylinder"
+            elif self.shape.Surface.isPlanar():
+                return "face"
+            return "face"
+        elif isinstance(self.shape, Part.Edge):
+            # Check if it's a circular edge
+            if isinstance(self.shape.Curve, (Part.Circle, Part.ArcOfCircle)):
+                return "circle"
+            elif isinstance(self.shape.Curve, Part.Line):
+                return "edge"
+            return "edge"
+        elif isinstance(self.shape, Part.Vertex):
+            return "vertex"
+
+        return "unknown"
+
+    @property
+    def display_name(self):
+        """Get display name for UI."""
+        if self.subname:
+            return f"{self.obj.Label}.{self.subname}"
+        return self.obj.Label
+
+    @property
+    def type_icon(self):
+        """Get icon character for geometry type."""
+        icons = {
+            "face": "▢",
+            "plane": "▣",
+            "cylinder": "◎",
+            "edge": "―",
+            "circle": "○",
+            "vertex": "•",
+            "unknown": "?",
+        }
+        return icons.get(self.geo_type, "?")
+
+
+class DatumCreatorTaskPanel:
+    """Unified task panel for creating datum planes, axes, and points.
+
+    Features a selection table where users can add/remove geometry items.
+    The datum type is automatically detected based on selection contents.
+    """
+
+    # Mode definitions: (display_name, mode_id, required_types, datum_category)
+    # required_types is a tuple describing what selection is needed
+    MODES = [
+        # Planes
+        ("Offset from Face", "offset_face", ("face",), "plane"),
+        ("Offset from Plane", "offset_plane", ("plane",), "plane"),
+        ("Midplane (2 Faces)", "midplane", ("face", "face"), "plane"),
+        ("3 Points", "3_points", ("vertex", "vertex", "vertex"), "plane"),
+        ("Normal to Edge", "normal_edge", ("edge",), "plane"),
+        ("Angled from Face", "angled", ("face", "edge"), "plane"),
+        ("Tangent to Cylinder", "tangent_cyl", ("cylinder",), "plane"),
+        # Axes
+        ("Axis from 2 Points", "axis_2pt", ("vertex", "vertex"), "axis"),
+        ("Axis from Edge", "axis_edge", ("edge",), "axis"),
+        ("Axis at Cylinder Center", "axis_cyl", ("cylinder",), "axis"),
+        ("Axis at Plane Intersection", "axis_intersect", ("plane", "plane"), "axis"),
+        # Points
+        ("Point at Vertex", "point_vertex", ("vertex",), "point"),
+        ("Point at XYZ", "point_xyz", (), "point"),
+        ("Point on Edge", "point_edge", ("edge",), "point"),
+        ("Point at Face Center", "point_face", ("face",), "point"),
+        ("Point at Circle Center", "point_circle", ("circle",), "point"),
+    ]
+
+    def __init__(self):
+        self.form = QtGui.QWidget()
+        self.form.setWindowTitle("ZTools Datum Creator")
+        self.selection_list = []  # List of SelectionItem
+        self.setup_ui()
+        self.setup_selection_observer()
+        self.update_mode_from_selection()
+
+    def setup_ui(self):
+        layout = QtGui.QVBoxLayout(self.form)
+        layout.setSpacing(8)
+
+        # Selection table section
+        sel_group = QtGui.QGroupBox("Selection")
+        sel_layout = QtGui.QVBoxLayout(sel_group)
+
+        # Selection table
+        self.sel_table = QtGui.QTableWidget()
+        self.sel_table.setColumnCount(3)
+        self.sel_table.setHorizontalHeaderLabels(["", "Element", ""])
+        header = self.sel_table.horizontalHeader()
+        header.setStretchLastSection(False)
+        header.setSectionResizeMode(0, QtGui.QHeaderView.Fixed)
+        header.setSectionResizeMode(1, QtGui.QHeaderView.Stretch)
+        header.setSectionResizeMode(2, QtGui.QHeaderView.Fixed)
+        header.resizeSection(0, 28)
+        header.resizeSection(2, 28)
+        self.sel_table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
+        self.sel_table.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
+        self.sel_table.setMaximumHeight(150)
+        self.sel_table.verticalHeader().setVisible(False)
+        sel_layout.addWidget(self.sel_table)
+
+        # Selection buttons
+        sel_btn_layout = QtGui.QHBoxLayout()
+        self.add_sel_btn = QtGui.QPushButton("Add Selected")
+        self.add_sel_btn.clicked.connect(self.add_current_selection)
+        self.remove_sel_btn = QtGui.QPushButton("Remove")
+        self.remove_sel_btn.clicked.connect(self.remove_selected_row)
+        self.clear_sel_btn = QtGui.QPushButton("Clear All")
+        self.clear_sel_btn.clicked.connect(self.clear_selection)
+        sel_btn_layout.addWidget(self.add_sel_btn)
+        sel_btn_layout.addWidget(self.remove_sel_btn)
+        sel_btn_layout.addWidget(self.clear_sel_btn)
+        sel_layout.addLayout(sel_btn_layout)
+
+        layout.addWidget(sel_group)
+
+        # Detected mode display
+        mode_group = QtGui.QGroupBox("Datum Type")
+        mode_layout = QtGui.QVBoxLayout(mode_group)
+
+        self.mode_label = QtGui.QLabel("Select geometry to auto-detect mode")
+        self.mode_label.setStyleSheet("font-weight: bold; color: #888;")
+        mode_layout.addWidget(self.mode_label)
+
+        # Manual mode override
+        override_layout = QtGui.QHBoxLayout()
+        override_layout.addWidget(QtGui.QLabel("Override:"))
+        self.mode_combo = QtGui.QComboBox()
+        self.mode_combo.addItem("(Auto-detect)", None)
+        for display_name, mode_id, _, category in self.MODES:
+            self.mode_combo.addItem(f"[{category[0].upper()}] {display_name}", mode_id)
+        self.mode_combo.currentIndexChanged.connect(self.on_mode_override_changed)
+        override_layout.addWidget(self.mode_combo)
+        mode_layout.addLayout(override_layout)
+
+        layout.addWidget(mode_group)
+
+        # Parameters section
+        self.params_group = QtGui.QGroupBox("Parameters")
+        self.params_layout = QtGui.QFormLayout(self.params_group)
+
+        # Offset spinner
+        self.offset_spin = QtGui.QDoubleSpinBox()
+        self.offset_spin.setRange(-10000, 10000)
+        self.offset_spin.setValue(10)
+        self.offset_spin.setSuffix(" mm")
+
+        # Angle spinner
+        self.angle_spin = QtGui.QDoubleSpinBox()
+        self.angle_spin.setRange(-360, 360)
+        self.angle_spin.setValue(45)
+        self.angle_spin.setSuffix(" °")
+
+        # Parameter spinner (0-1)
+        self.param_spin = QtGui.QDoubleSpinBox()
+        self.param_spin.setRange(0, 1)
+        self.param_spin.setValue(0.5)
+        self.param_spin.setSingleStep(0.1)
+
+        # XYZ coordinates
+        self.x_spin = QtGui.QDoubleSpinBox()
+        self.x_spin.setRange(-10000, 10000)
+        self.x_spin.setSuffix(" mm")
+        self.y_spin = QtGui.QDoubleSpinBox()
+        self.y_spin.setRange(-10000, 10000)
+        self.y_spin.setSuffix(" mm")
+        self.z_spin = QtGui.QDoubleSpinBox()
+        self.z_spin.setRange(-10000, 10000)
+        self.z_spin.setSuffix(" mm")
+
+        layout.addWidget(self.params_group)
+
+        # Options section
+        options_group = QtGui.QGroupBox("Options")
+        options_layout = QtGui.QVBoxLayout(options_group)
+
+        self.link_spreadsheet_cb = QtGui.QCheckBox("Link to Spreadsheet")
+        options_layout.addWidget(self.link_spreadsheet_cb)
+
+        self.use_body_cb = QtGui.QCheckBox("Add to Active Body")
+        self.use_body_cb.setChecked(True)
+        options_layout.addWidget(self.use_body_cb)
+
+        # Custom name
+        name_layout = QtGui.QHBoxLayout()
+        self.custom_name_cb = QtGui.QCheckBox("Custom Name:")
+        self.custom_name_edit = QtGui.QLineEdit()
+        self.custom_name_edit.setEnabled(False)
+        self.custom_name_cb.toggled.connect(self.custom_name_edit.setEnabled)
+        name_layout.addWidget(self.custom_name_cb)
+        name_layout.addWidget(self.custom_name_edit)
+        options_layout.addLayout(name_layout)
+
+        layout.addWidget(options_group)
+
+        # Initial state
+        self.update_params_ui(None)
+
+    def setup_selection_observer(self):
+        """Setup selection observer to track user selections."""
+
+        class SelectionObserver:
+            def __init__(self, panel):
+                self.panel = panel
+
+            def addSelection(self, doc, obj, sub, pos):
+                self.panel.on_freecad_selection_changed()
+
+            def removeSelection(self, doc, obj, sub):
+                self.panel.on_freecad_selection_changed()
+
+            def clearSelection(self, doc):
+                self.panel.on_freecad_selection_changed()
+
+        self.observer = SelectionObserver(self)
+        Gui.Selection.addObserver(self.observer)
+
+    def on_freecad_selection_changed(self):
+        """Called when FreeCAD selection changes - update add button state."""
+        sel = Gui.Selection.getSelectionEx()
+        has_sel = len(sel) > 0
+        self.add_sel_btn.setEnabled(has_sel)
+
+    def add_current_selection(self):
+        """Add current FreeCAD selection to the selection table."""
+        sel = Gui.Selection.getSelectionEx()
+        for s in sel:
+            obj = s.Object
+            if s.SubElementNames:
+                for i, sub in enumerate(s.SubElementNames):
+                    # Get the shape if available
+                    shape = None
+                    if i < len(s.SubObjects):
+                        shape = s.SubObjects[i]
+                    item = SelectionItem(obj, sub, shape)
+                    self._add_selection_item(item)
+            else:
+                # Object selected without sub-element
+                item = SelectionItem(obj, "", None)
+                self._add_selection_item(item)
+
+        self.refresh_selection_table()
+        self.update_mode_from_selection()
+
+    def _add_selection_item(self, item):
+        """Add item to selection list if not already present."""
+        # Check for duplicates
+        for existing in self.selection_list:
+            if existing.obj == item.obj and existing.subname == item.subname:
+                return  # Already in list
+        self.selection_list.append(item)
+
+    def remove_selected_row(self):
+        """Remove selected row from selection table."""
+        rows = self.sel_table.selectionModel().selectedRows()
+        if rows:
+            # Remove in reverse order to maintain indices
+            for row in sorted([r.row() for r in rows], reverse=True):
+                if row < len(self.selection_list):
+                    del self.selection_list[row]
+            self.refresh_selection_table()
+            self.update_mode_from_selection()
+
+    def clear_selection(self):
+        """Clear all items from selection table."""
+        self.selection_list.clear()
+        self.refresh_selection_table()
+        self.update_mode_from_selection()
+
+    def refresh_selection_table(self):
+        """Refresh the selection table display."""
+        self.sel_table.setRowCount(len(self.selection_list))
+        for i, item in enumerate(self.selection_list):
+            # Type icon
+            type_item = QtGui.QTableWidgetItem(item.type_icon)
+            type_item.setTextAlignment(QtCore.Qt.AlignCenter)
+            type_item.setToolTip(item.geo_type)
+            self.sel_table.setItem(i, 0, type_item)
+
+            # Element name
+            name_item = QtGui.QTableWidgetItem(item.display_name)
+            self.sel_table.setItem(i, 1, name_item)
+
+            # Remove button
+            remove_btn = QtGui.QPushButton("✕")
+            remove_btn.setFixedSize(24, 24)
+            remove_btn.clicked.connect(lambda checked, row=i: self._remove_row(row))
+            self.sel_table.setCellWidget(i, 2, remove_btn)
+
+    def _remove_row(self, row):
+        """Remove a specific row."""
+        if row < len(self.selection_list):
+            del self.selection_list[row]
+            self.refresh_selection_table()
+            self.update_mode_from_selection()
+
+    def get_selection_types(self):
+        """Get tuple of geometry types in current selection."""
+        return tuple(item.geo_type for item in self.selection_list)
+
+    def update_mode_from_selection(self):
+        """Auto-detect the best mode based on current selection."""
+        if self.mode_combo.currentIndex() > 0:
+            # Manual override is active
+            mode_id = self.mode_combo.currentData()
+            self._set_detected_mode(mode_id)
+            return
+
+        sel_types = self.get_selection_types()
+
+        if not sel_types:
+            self.mode_label.setText("Select geometry to auto-detect mode")
+            self.mode_label.setStyleSheet("font-weight: bold; color: #888;")
+            self.update_params_ui(None)
+            return
+
+        # Find matching modes
+        best_match = None
+        best_score = -1
+
+        for display_name, mode_id, required_types, category in self.MODES:
+            if not required_types:
+                continue  # Skip modes with no requirements (like XYZ point)
+
+            score = self._match_score(sel_types, required_types)
+            if score > best_score:
+                best_score = score
+                best_match = (display_name, mode_id, category)
+
+        if best_match and best_score > 0:
+            display_name, mode_id, category = best_match
+            cat_colors = {"plane": "#cba6f7", "axis": "#94e2d5", "point": "#f9e2af"}
+            color = cat_colors.get(category, "#cdd6f4")
+            self.mode_label.setText(f"{display_name}")
+            self.mode_label.setStyleSheet(f"font-weight: bold; color: {color};")
+            self.update_params_ui(mode_id)
+        else:
+            self.mode_label.setText("No matching mode for selection")
+            self.mode_label.setStyleSheet("font-weight: bold; color: #f38ba8;")
+            self.update_params_ui(None)
+
+    def _match_score(self, sel_types, required_types):
+        """
+        Calculate how well selection matches required types.
+        Returns score >= 0, higher is better. 0 means no match.
+        """
+        if len(sel_types) < len(required_types):
+            return 0  # Not enough items
+
+        # Check if we can satisfy all requirements
+        sel_list = list(sel_types)
+        matched = 0
+        for req in required_types:
+            # Try to find a matching type in selection
+            found = False
+            for i, sel in enumerate(sel_list):
+                if self._type_matches(sel, req):
+                    sel_list.pop(i)
+                    matched += 1
+                    found = True
+                    break
+            if not found:
+                return 0  # Can't satisfy this requirement
+
+        # Score based on how exact the match is
+        # Exact match (same count) scores higher
+        if len(sel_types) == len(required_types):
+            return 100 + matched
+        else:
+            return matched
+
+    def _type_matches(self, sel_type, req_type):
+        """Check if a selected type matches a required type."""
+        if sel_type == req_type:
+            return True
+        # Face can match cylinder (cylinder is a special face)
+        if req_type == "face" and sel_type in ("face", "cylinder"):
+            return True
+        # Edge can match circle (circle is a special edge)
+        if req_type == "edge" and sel_type in ("edge", "circle"):
+            return True
+        return False
+
+    def on_mode_override_changed(self, index):
+        """Handle manual mode override selection."""
+        if index == 0:
+            # Auto-detect
+            self.update_mode_from_selection()
+        else:
+            mode_id = self.mode_combo.currentData()
+            self._set_detected_mode(mode_id)
+
+    def _set_detected_mode(self, mode_id):
+        """Set the mode and update UI."""
+        for display_name, mid, _, category in self.MODES:
+            if mid == mode_id:
+                cat_colors = {"plane": "#cba6f7", "axis": "#94e2d5", "point": "#f9e2af"}
+                color = cat_colors.get(category, "#cdd6f4")
+                self.mode_label.setText(f"{display_name}")
+                self.mode_label.setStyleSheet(f"font-weight: bold; color: {color};")
+                self.update_params_ui(mode_id)
+                return
+
+    def _clear_params_layout(self):
+        """Remove all rows from params_layout without deleting the widgets.
+
+        QFormLayout.removeRow() destroys the widgets it owns.  Instead we
+        detach every item from the layout (which relinquishes ownership)
+        and hide the widgets so they can be re-added later.
+        """
+        while self.params_layout.count():
+            item = self.params_layout.takeAt(0)
+            widget = item.widget()
+            if widget is not None:
+                widget.hide()
+                widget.setParent(None)
+
+    def update_params_ui(self, mode_id):
+        """Update parameters UI based on mode."""
+        # Clear existing params without destroying widgets
+        self._clear_params_layout()
+
+        if mode_id is None:
+            self.params_group.setVisible(False)
+            return
+
+        self.params_group.setVisible(True)
+
+        if mode_id in ("offset_face", "offset_plane"):
+            self.offset_spin.show()
+            self.params_layout.addRow("Offset:", self.offset_spin)
+        elif mode_id == "angled":
+            self.angle_spin.show()
+            self.params_layout.addRow("Angle:", self.angle_spin)
+        elif mode_id == "normal_edge":
+            self.param_spin.show()
+            self.params_layout.addRow("Position (0-1):", self.param_spin)
+        elif mode_id == "tangent_cyl":
+            self.angle_spin.show()
+            self.params_layout.addRow("Angle:", self.angle_spin)
+        elif mode_id == "point_xyz":
+            self.x_spin.show()
+            self.y_spin.show()
+            self.z_spin.show()
+            self.params_layout.addRow("X:", self.x_spin)
+            self.params_layout.addRow("Y:", self.y_spin)
+            self.params_layout.addRow("Z:", self.z_spin)
+        elif mode_id == "point_edge":
+            self.param_spin.show()
+            self.params_layout.addRow("Position (0-1):", self.param_spin)
+        else:
+            # No parameters needed
+            self.params_group.setVisible(False)
+
+    def get_current_mode(self):
+        """Get the currently active mode ID."""
+        if self.mode_combo.currentIndex() > 0:
+            return self.mode_combo.currentData()
+
+        # Auto-detected mode
+        sel_types = self.get_selection_types()
+        if not sel_types:
+            return None
+
+        best_match = None
+        best_score = -1
+        for _, mode_id, required_types, _ in self.MODES:
+            if not required_types:
+                continue
+            score = self._match_score(sel_types, required_types)
+            if score > best_score:
+                best_score = score
+                best_match = mode_id
+
+        return best_match if best_score > 0 else None
+
+    def get_body(self):
+        """Get active body if checkbox is checked."""
+        if not self.use_body_cb.isChecked():
+            return None
+
+        if hasattr(Gui, "ActiveDocument") and Gui.ActiveDocument:
+            active_view = Gui.ActiveDocument.ActiveView
+            if hasattr(active_view, "getActiveObject"):
+                body = active_view.getActiveObject("pdbody")
+                if body:
+                    return body
+
+        doc = App.ActiveDocument
+        for obj in doc.Objects:
+            if obj.TypeId == "PartDesign::Body":
+                return obj
+
+        return None
+
+    def get_name(self):
+        """Get custom name or None for auto-naming."""
+        if self.custom_name_cb.isChecked() and self.custom_name_edit.text():
+            return self.custom_name_edit.text()
+        return None
+
+    def get_items_by_type(self, *geo_types):
+        """Get selection items matching given geometry types."""
+        results = []
+        for item in self.selection_list:
+            if item.geo_type in geo_types:
+                results.append(item)
+        return results
+
+    def create_datum(self):
+        """Create the datum based on current settings."""
+        from ztools.datums import core
+
+        mode = self.get_current_mode()
+        if mode is None:
+            raise ValueError("No valid mode detected. Add geometry to the selection.")
+
+        body = self.get_body()
+        name = self.get_name()
+        link_ss = self.link_spreadsheet_cb.isChecked()
+
+        # Planes
+        if mode == "offset_face":
+            items = self.get_items_by_type("face", "cylinder")
+            if not items:
+                raise ValueError("Select a face")
+            item = items[0]
+            face = item.shape if item.shape else item.obj.Shape.Faces[0]
+            core.plane_offset_from_face(
+                face,
+                self.offset_spin.value(),
+                name=name,
+                body=body,
+                link_spreadsheet=link_ss,
+                source_object=item.obj,
+                source_subname=item.subname,
+            )
+
+        elif mode == "offset_plane":
+            items = self.get_items_by_type("plane")
+            if not items:
+                raise ValueError("Select a datum plane")
+            core.plane_offset_from_plane(
+                items[0].obj,
+                self.offset_spin.value(),
+                name=name,
+                body=body,
+                link_spreadsheet=link_ss,
+            )
+
+        elif mode == "midplane":
+            items = self.get_items_by_type("face", "cylinder")
+            if len(items) < 2:
+                raise ValueError("Select 2 faces")
+            face1 = items[0].shape if items[0].shape else items[0].obj.Shape.Faces[0]
+            face2 = items[1].shape if items[1].shape else items[1].obj.Shape.Faces[0]
+            core.plane_midplane(
+                face1,
+                face2,
+                name=name,
+                body=body,
+                source_object1=items[0].obj,
+                source_subname1=items[0].subname,
+                source_object2=items[1].obj,
+                source_subname2=items[1].subname,
+            )
+
+        elif mode == "3_points":
+            items = self.get_items_by_type("vertex")
+            if len(items) < 3:
+                raise ValueError("Select 3 vertices")
+            v1 = items[0].shape if items[0].shape else items[0].obj.Shape.Vertexes[0]
+            v2 = items[1].shape if items[1].shape else items[1].obj.Shape.Vertexes[0]
+            v3 = items[2].shape if items[2].shape else items[2].obj.Shape.Vertexes[0]
+            core.plane_from_3_points(
+                v1.Point,
+                v2.Point,
+                v3.Point,
+                name=name,
+                body=body,
+                source_refs=[
+                    (items[0].obj, items[0].subname),
+                    (items[1].obj, items[1].subname),
+                    (items[2].obj, items[2].subname),
+                ],
+            )
+
+        elif mode == "normal_edge":
+            items = self.get_items_by_type("edge", "circle")
+            if not items:
+                raise ValueError("Select an edge")
+            edge = items[0].shape if items[0].shape else items[0].obj.Shape.Edges[0]
+            core.plane_normal_to_edge(
+                edge,
+                parameter=self.param_spin.value(),
+                name=name,
+                body=body,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        elif mode == "angled":
+            faces = self.get_items_by_type("face", "cylinder")
+            edges = self.get_items_by_type("edge", "circle")
+            if not faces or not edges:
+                raise ValueError("Select a face and an edge")
+            face = faces[0].shape if faces[0].shape else faces[0].obj.Shape.Faces[0]
+            edge = edges[0].shape if edges[0].shape else edges[0].obj.Shape.Edges[0]
+            core.plane_angled(
+                face,
+                edge,
+                self.angle_spin.value(),
+                name=name,
+                body=body,
+                link_spreadsheet=link_ss,
+                source_face_obj=faces[0].obj,
+                source_face_sub=faces[0].subname,
+                source_edge_obj=edges[0].obj,
+                source_edge_sub=edges[0].subname,
+            )
+
+        elif mode == "tangent_cyl":
+            items = self.get_items_by_type("cylinder")
+            if not items:
+                raise ValueError("Select a cylindrical face")
+            face = items[0].shape if items[0].shape else items[0].obj.Shape.Faces[0]
+            core.plane_tangent_to_cylinder(
+                face,
+                angle=self.angle_spin.value(),
+                name=name,
+                body=body,
+                link_spreadsheet=link_ss,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        # Axes
+        elif mode == "axis_2pt":
+            items = self.get_items_by_type("vertex")
+            if len(items) < 2:
+                raise ValueError("Select 2 vertices")
+            v1 = items[0].shape if items[0].shape else items[0].obj.Shape.Vertexes[0]
+            v2 = items[1].shape if items[1].shape else items[1].obj.Shape.Vertexes[0]
+            core.axis_from_2_points(
+                v1.Point,
+                v2.Point,
+                name=name,
+                body=body,
+                source_refs=[
+                    (items[0].obj, items[0].subname),
+                    (items[1].obj, items[1].subname),
+                ],
+            )
+
+        elif mode == "axis_edge":
+            items = self.get_items_by_type("edge")
+            if not items:
+                raise ValueError("Select a linear edge")
+            edge = items[0].shape if items[0].shape else items[0].obj.Shape.Edges[0]
+            core.axis_from_edge(
+                edge,
+                name=name,
+                body=body,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        elif mode == "axis_cyl":
+            items = self.get_items_by_type("cylinder")
+            if not items:
+                raise ValueError("Select a cylindrical face")
+            face = items[0].shape if items[0].shape else items[0].obj.Shape.Faces[0]
+            core.axis_cylinder_center(
+                face,
+                name=name,
+                body=body,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        elif mode == "axis_intersect":
+            items = self.get_items_by_type("plane")
+            if len(items) < 2:
+                raise ValueError("Select 2 datum planes")
+            core.axis_intersection_planes(
+                items[0].obj,
+                items[1].obj,
+                name=name,
+                body=body,
+                source_object1=items[0].obj,
+                source_subname1="",
+                source_object2=items[1].obj,
+                source_subname2="",
+            )
+
+        # Points
+        elif mode == "point_vertex":
+            items = self.get_items_by_type("vertex")
+            if not items:
+                raise ValueError("Select a vertex")
+            vert = items[0].shape if items[0].shape else items[0].obj.Shape.Vertexes[0]
+            core.point_at_vertex(
+                vert,
+                name=name,
+                body=body,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        elif mode == "point_xyz":
+            core.point_at_coordinates(
+                self.x_spin.value(),
+                self.y_spin.value(),
+                self.z_spin.value(),
+                name=name,
+                body=body,
+                link_spreadsheet=link_ss,
+            )
+
+        elif mode == "point_edge":
+            items = self.get_items_by_type("edge", "circle")
+            if not items:
+                raise ValueError("Select an edge")
+            edge = items[0].shape if items[0].shape else items[0].obj.Shape.Edges[0]
+            core.point_on_edge(
+                edge,
+                parameter=self.param_spin.value(),
+                name=name,
+                body=body,
+                link_spreadsheet=link_ss,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        elif mode == "point_face":
+            items = self.get_items_by_type("face", "cylinder")
+            if not items:
+                raise ValueError("Select a face")
+            face = items[0].shape if items[0].shape else items[0].obj.Shape.Faces[0]
+            core.point_center_of_face(
+                face,
+                name=name,
+                body=body,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        elif mode == "point_circle":
+            items = self.get_items_by_type("circle")
+            if not items:
+                raise ValueError("Select a circular edge")
+            edge = items[0].shape if items[0].shape else items[0].obj.Shape.Edges[0]
+            core.point_center_of_circle(
+                edge,
+                name=name,
+                body=body,
+                source_object=items[0].obj,
+                source_subname=items[0].subname,
+            )
+
+        else:
+            raise ValueError(f"Unknown mode: {mode}")
+
+    def accept(self):
+        """Called when OK is clicked. Creates the datum."""
+        Gui.Selection.removeObserver(self.observer)
+        try:
+            self.create_datum()
+            App.Console.PrintMessage("ZTools: Datum created successfully\n")
+        except Exception as e:
+            App.Console.PrintError(f"ZTools: Failed to create datum: {e}\n")
+            QtGui.QMessageBox.warning(self.form, "Error", str(e))
+        return True
+
+    def reject(self):
+        """Called when Cancel is clicked."""
+        Gui.Selection.removeObserver(self.observer)
+        return True
+
+    def getStandardButtons(self):
+        return QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel
+
+
+class ZTools_DatumCreator:
+    """Command to open datum creator task panel."""
+
+    def GetResources(self):
+        from ztools.resources.icons import get_icon
+
+        return {
+            "Pixmap": get_icon("datum_creator"),
+            "MenuText": "Datum Creator",
+            "ToolTip": "Create datum planes, axes, and points with advanced options",
+        }
+
+    def Activated(self):
+        panel = DatumCreatorTaskPanel()
+        Gui.Control.showDialog(panel)
+
+    def IsActive(self):
+        return App.ActiveDocument is not None
+
+
+class ZTools_DatumManager:
+    """Command to open datum manager panel."""
+
+    def GetResources(self):
+        from ztools.resources.icons import get_icon
+
+        return {
+            "Pixmap": get_icon("datum_manager"),
+            "MenuText": "Datum Manager",
+            "ToolTip": "List, toggle visibility, and rename datums in document",
+        }
+
+    def Activated(self):
+        # TODO: Implement datum manager panel
+        App.Console.PrintMessage("ZTools: Datum Manager - Coming soon\n")
+
+    def IsActive(self):
+        return App.ActiveDocument is not None
+
+
+# Register commands
+Gui.addCommand("ZTools_DatumCreator", ZTools_DatumCreator())
+Gui.addCommand("ZTools_DatumManager", ZTools_DatumManager())

reference/ztools/ztools/ztools/commands/datum_viewprovider.py

@@ -0,0 +1,487 @@
+# ztools/commands/datum_viewprovider.py
+# Custom ViewProvider for ZTools datum objects
+
+import json
+import math
+
+import FreeCAD as App
+import FreeCADGui as Gui
+import Part
+from PySide import QtCore, QtGui
+
+
+class ZToolsDatumViewProvider:
+    """
+    Custom ViewProvider for ZTools datum objects.
+
+    Features:
+    - Overrides double-click to open ZTools editor instead of vanilla attachment
+    - Hides attachment properties from property editor
+    - Provides custom icons based on datum type
+    """
+
+    _is_ztools = True  # Marker to identify ZTools ViewProviders
+
+    def __init__(self, vobj):
+        """Initialize and attach to ViewObject."""
+        vobj.Proxy = self
+        self.Object = vobj.Object if vobj else None
+
+    def attach(self, vobj):
+        """Called when ViewProvider is attached to object."""
+        self.Object = vobj.Object
+        self._hide_attachment_props(vobj)
+
+    def _hide_attachment_props(self, vobj):
+        """Hide FreeCAD attachment properties using persistent property status."""
+        if not vobj or not vobj.Object:
+            return
+
+        obj = vobj.Object
+        attachment_props = [
+            "MapMode",
+            "MapPathParameter",
+            "MapReversed",
+            "AttachmentOffset",
+            "AttachmentSupport",
+            "Support",
+        ]
+
+        for prop in attachment_props:
+            try:
+                if hasattr(obj, prop):
+                    obj.setPropertyStatus(prop, "Hidden")
+            except Exception:
+                pass
+
+    def updateData(self, obj, prop):
+        """Called when data properties change."""
+        pass
+
+    def onChanged(self, vobj, prop):
+        """Called when view properties change."""
+        # Re-hide attachment properties if they become visible
+        if prop in ("MapMode", "Support"):
+            self._hide_attachment_props(vobj)
+
+    def doubleClicked(self, vobj):
+        """
+        Handle double-click - open ZTools datum editor.
+        Returns True if handled, False to let FreeCAD handle it.
+        """
+        if Gui.Control.activeDialog():
+            # Task panel already open
+            return False
+
+        # Check if this is a ZTools datum
+        obj = vobj.Object
+        if not hasattr(obj, "ZTools_Type"):
+            # Not a ZTools datum, let FreeCAD handle it
+            return False
+
+        # Open ZTools editor
+        panel = DatumEditTaskPanel(obj)
+        Gui.Control.showDialog(panel)
+        return True
+
+    def setEdit(self, vobj, mode=0):
+        """
+        Called when entering edit mode.
+        Mode 0 = default edit, Mode 1 = transform
+        """
+        if mode == 0:
+            obj = vobj.Object
+            if hasattr(obj, "ZTools_Type"):
+                panel = DatumEditTaskPanel(obj)
+                Gui.Control.showDialog(panel)
+                return True
+        return False
+
+    def unsetEdit(self, vobj, mode=0):
+        """Called when exiting edit mode."""
+        return False
+
+    def getIcon(self):
+        """Return icon for tree view based on datum type."""
+        from ztools.resources.icons import get_icon
+
+        if not self.Object:
+            return get_icon("datum_creator")
+
+        ztools_type = getattr(self.Object, "ZTools_Type", "")
+
+        # Map ZTools type to icon
+        icon_map = {
+            "offset_from_face": "plane_offset",
+            "offset_from_plane": "plane_offset",
+            "midplane": "plane_midplane",
+            "3_points": "plane_3pt",
+            "normal_to_edge": "plane_normal",
+            "angled": "plane_angled",
+            "tangent_cylinder": "plane_tangent",
+            "2_points": "axis_2pt",
+            "from_edge": "axis_edge",
+            "cylinder_center": "axis_cyl",
+            "plane_intersection": "axis_intersect",
+            "vertex": "point_vertex",
+            "coordinates": "point_xyz",
+            "on_edge": "point_edge",
+            "face_center": "point_face",
+            "circle_center": "point_circle",
+        }
+
+        icon_name = icon_map.get(ztools_type, "datum_creator")
+        return get_icon(icon_name)
+
+    def __getstate__(self):
+        """Serialization - don't save proxy state."""
+        return None
+
+    def __setstate__(self, state):
+        """Deserialization."""
+        return None
+
+
+def _resolve_source_refs(datum_obj):
+    """Parse ZTools_SourceRefs and resolve to (object, subname, shape) tuples."""
+    refs_json = getattr(datum_obj, "ZTools_SourceRefs", "[]")
+    try:
+        refs = json.loads(refs_json)
+    except json.JSONDecodeError:
+        return []
+    doc = datum_obj.Document
+    resolved = []
+    for ref in refs:
+        obj = doc.getObject(ref.get("object", ""))
+        sub = ref.get("subname", "")
+        shape = obj.getSubObject(sub) if obj and sub else None
+        resolved.append((obj, sub, shape))
+    return resolved
+
+
+class DatumEditTaskPanel:
+    """
+    Task panel for editing existing ZTools datum objects.
+
+    Allows modification of:
+    - Offset distance (for offset-type datums)
+    - Angle (for angled/tangent datums)
+    - Parameter position (for edge-based datums)
+    - Source references (future)
+    """
+
+    def __init__(self, datum_obj):
+        self.datum_obj = datum_obj
+        self.form = QtGui.QWidget()
+        self.form.setWindowTitle(f"Edit {datum_obj.Label}")
+        self.original_placement = datum_obj.Placement.copy()
+        self.setup_ui()
+        self.load_current_values()
+
+    def setup_ui(self):
+        """Create the edit panel UI."""
+        layout = QtGui.QVBoxLayout(self.form)
+        layout.setSpacing(8)
+
+        # Header with datum info
+        info_group = QtGui.QGroupBox("Datum Info")
+        info_layout = QtGui.QFormLayout(info_group)
+
+        self.name_edit = QtGui.QLineEdit(self.datum_obj.Label)
+        info_layout.addRow("Name:", self.name_edit)
+
+        ztools_type = getattr(self.datum_obj, "ZTools_Type", "unknown")
+        type_label = QtGui.QLabel(self._format_type_name(ztools_type))
+        type_label.setStyleSheet("color: #cba6f7; font-weight: bold;")
+        info_layout.addRow("Type:", type_label)
+
+        layout.addWidget(info_group)
+
+        # Parameters group
+        self.params_group = QtGui.QGroupBox("Parameters")
+        self.params_layout = QtGui.QFormLayout(self.params_group)
+
+        # Offset spinner
+        self.offset_spin = QtGui.QDoubleSpinBox()
+        self.offset_spin.setRange(-10000, 10000)
+        self.offset_spin.setSuffix(" mm")
+        self.offset_spin.valueChanged.connect(self.on_param_changed)
+
+        # Angle spinner
+        self.angle_spin = QtGui.QDoubleSpinBox()
+        self.angle_spin.setRange(-360, 360)
+        self.angle_spin.setSuffix(" °")
+        self.angle_spin.valueChanged.connect(self.on_param_changed)
+
+        # Parameter spinner (0-1)
+        self.param_spin = QtGui.QDoubleSpinBox()
+        self.param_spin.setRange(0, 1)
+        self.param_spin.setSingleStep(0.1)
+        self.param_spin.valueChanged.connect(self.on_param_changed)
+
+        # XYZ spinners for point coordinates
+        self.x_spin = QtGui.QDoubleSpinBox()
+        self.x_spin.setRange(-10000, 10000)
+        self.x_spin.setSuffix(" mm")
+        self.x_spin.valueChanged.connect(self.on_param_changed)
+
+        self.y_spin = QtGui.QDoubleSpinBox()
+        self.y_spin.setRange(-10000, 10000)
+        self.y_spin.setSuffix(" mm")
+        self.y_spin.valueChanged.connect(self.on_param_changed)
+
+        self.z_spin = QtGui.QDoubleSpinBox()
+        self.z_spin.setRange(-10000, 10000)
+        self.z_spin.setSuffix(" mm")
+        self.z_spin.valueChanged.connect(self.on_param_changed)
+
+        layout.addWidget(self.params_group)
+
+        # Source references (read-only for now)
+        refs_group = QtGui.QGroupBox("Source References")
+        refs_layout = QtGui.QVBoxLayout(refs_group)
+
+        self.refs_list = QtGui.QListWidget()
+        self.refs_list.setMaximumHeight(80)
+        refs_layout.addWidget(self.refs_list)
+
+        layout.addWidget(refs_group)
+
+        # Placement info (read-only)
+        placement_group = QtGui.QGroupBox("Current Placement")
+        placement_layout = QtGui.QFormLayout(placement_group)
+
+        pos = self.datum_obj.Placement.Base
+        self.pos_label = QtGui.QLabel(f"({pos.x:.2f}, {pos.y:.2f}, {pos.z:.2f})")
+        placement_layout.addRow("Position:", self.pos_label)
+
+        layout.addWidget(placement_group)
+
+        layout.addStretch()
+
+    def _format_type_name(self, ztools_type):
+        """Format ZTools type string for display."""
+        type_names = {
+            "offset_from_face": "Offset from Face",
+            "offset_from_plane": "Offset from Plane",
+            "midplane": "Midplane",
+            "3_points": "3 Points",
+            "normal_to_edge": "Normal to Edge",
+            "angled": "Angled from Face",
+            "tangent_cylinder": "Tangent to Cylinder",
+            "2_points": "2 Points",
+            "from_edge": "From Edge",
+            "cylinder_center": "Cylinder Center",
+            "plane_intersection": "Plane Intersection",
+            "vertex": "At Vertex",
+            "coordinates": "XYZ Coordinates",
+            "on_edge": "On Edge",
+            "face_center": "Face Center",
+            "circle_center": "Circle Center",
+        }
+        return type_names.get(ztools_type, ztools_type)
+
+    def load_current_values(self):
+        """Load current values from datum object."""
+        ztools_type = getattr(self.datum_obj, "ZTools_Type", "")
+        params_json = getattr(self.datum_obj, "ZTools_Params", "{}")
+        refs_json = getattr(self.datum_obj, "ZTools_SourceRefs", "[]")
+
+        try:
+            params = json.loads(params_json)
+        except json.JSONDecodeError:
+            params = {}
+
+        try:
+            refs = json.loads(refs_json)
+        except json.JSONDecodeError:
+            refs = []
+
+        # Clear params layout
+        while self.params_layout.rowCount() > 0:
+            self.params_layout.removeRow(0)
+
+        # Add appropriate parameter controls based on type
+        if ztools_type in ("offset_from_face", "offset_from_plane"):
+            distance = params.get("distance", 10)
+            self.offset_spin.setValue(distance)
+            self.params_layout.addRow("Offset:", self.offset_spin)
+
+        elif ztools_type == "angled":
+            angle = params.get("angle", 45)
+            self.angle_spin.setValue(angle)
+            self.params_layout.addRow("Angle:", self.angle_spin)
+
+        elif ztools_type == "tangent_cylinder":
+            angle = params.get("angle", 0)
+            self.angle_spin.setValue(angle)
+            self.params_layout.addRow("Angle:", self.angle_spin)
+
+        elif ztools_type in ("normal_to_edge", "on_edge"):
+            parameter = params.get("parameter", 0.5)
+            self.param_spin.setValue(parameter)
+            self.params_layout.addRow("Position (0-1):", self.param_spin)
+
+        elif ztools_type == "coordinates":
+            x = params.get("x", 0)
+            y = params.get("y", 0)
+            z = params.get("z", 0)
+            self.x_spin.setValue(x)
+            self.y_spin.setValue(y)
+            self.z_spin.setValue(z)
+            self.params_layout.addRow("X:", self.x_spin)
+            self.params_layout.addRow("Y:", self.y_spin)
+            self.params_layout.addRow("Z:", self.z_spin)
+        else:
+            # No editable parameters
+            no_params_label = QtGui.QLabel("No editable parameters")
+            no_params_label.setStyleSheet("color: #888;")
+            self.params_layout.addRow(no_params_label)
+
+        # Load source references
+        self.refs_list.clear()
+        for ref in refs:
+            obj_name = ref.get("object", "?")
+            subname = ref.get("subname", "")
+            if subname:
+                self.refs_list.addItem(f"{obj_name}.{subname}")
+            else:
+                self.refs_list.addItem(obj_name)
+
+        if not refs:
+            self.refs_list.addItem("(no references)")
+
+    def _has_attachment(self):
+        """Check if datum uses vanilla AttachExtension (MapMode != Deactivated)."""
+        return (
+            hasattr(self.datum_obj, "MapMode")
+            and self.datum_obj.MapMode != "Deactivated"
+        )
+
+    def on_param_changed(self):
+        """Handle parameter value changes - update datum in real-time.
+
+        For datums with active AttachExtension, writes to AttachmentOffset or
+        MapPathParameter — the C++ engine recalculates placement automatically.
+        For manual datums, updates Placement directly.
+        """
+        ztools_type = getattr(self.datum_obj, "ZTools_Type", "")
+
+        # For coordinate-based points, update placement directly
+        if ztools_type == "coordinates":
+            new_pos = App.Vector(
+                self.x_spin.value(), self.y_spin.value(), self.z_spin.value()
+            )
+            self.datum_obj.Placement.Base = new_pos
+            self._update_params({"x": new_pos.x, "y": new_pos.y, "z": new_pos.z})
+
+        elif ztools_type in ("offset_from_face", "offset_from_plane", "midplane"):
+            distance = self.offset_spin.value()
+            if self._has_attachment():
+                new_offset = App.Placement(App.Vector(0, 0, distance), App.Rotation())
+                self.datum_obj.AttachmentOffset = new_offset
+            self._update_params({"distance": distance})
+
+        elif ztools_type == "angled":
+            angle = self.angle_spin.value()
+            if self._has_attachment():
+                refs = _resolve_source_refs(self.datum_obj)
+                if len(refs) >= 2 and refs[0][2] and refs[1][2]:
+                    face_normal = refs[0][2].normalAt(0, 0)
+                    edge_shape = refs[1][2]
+                    edge_dir = (
+                        edge_shape.Vertexes[-1].Point - edge_shape.Vertexes[0].Point
+                    ).normalize()
+                    face_rot = App.Rotation(App.Vector(0, 0, 1), face_normal)
+                    local_edge_dir = face_rot.inverted().multVec(edge_dir)
+                    angle_rot = App.Rotation(local_edge_dir, angle)
+                    self.datum_obj.AttachmentOffset = App.Placement(
+                        App.Vector(0, 0, 0), angle_rot
+                    )
+            self._update_params({"angle": angle})
+
+        elif ztools_type == "tangent_cylinder":
+            angle = self.angle_spin.value()
+            if self._has_attachment():
+                params_json = getattr(self.datum_obj, "ZTools_Params", "{}")
+                try:
+                    params = json.loads(params_json)
+                except json.JSONDecodeError:
+                    params = {}
+                vertex_angle = params.get("vertex_angle", 0.0)
+                offset_rot = App.Rotation(App.Vector(0, 0, 1), angle - vertex_angle)
+                self.datum_obj.AttachmentOffset = App.Placement(
+                    App.Vector(0, 0, 0), offset_rot
+                )
+            else:
+                refs = _resolve_source_refs(self.datum_obj)
+                if refs and refs[0][2]:
+                    face = refs[0][2]
+                    if isinstance(face.Surface, Part.Cylinder):
+                        cyl = face.Surface
+                        axis = cyl.Axis
+                        center = cyl.Center
+                        radius = cyl.Radius
+                        rad = math.radians(angle)
+                        if abs(axis.dot(App.Vector(1, 0, 0))) < 0.99:
+                            local_x = axis.cross(App.Vector(1, 0, 0)).normalize()
+                        else:
+                            local_x = axis.cross(App.Vector(0, 1, 0)).normalize()
+                        local_y = axis.cross(local_x)
+                        radial = local_x * math.cos(rad) + local_y * math.sin(rad)
+                        tangent_point = center + radial * radius
+                        rot = App.Rotation(App.Vector(0, 0, 1), radial)
+                        self.datum_obj.Placement = App.Placement(tangent_point, rot)
+            self._update_params({"angle": angle})
+
+        elif ztools_type in ("normal_to_edge", "on_edge"):
+            parameter = self.param_spin.value()
+            if self._has_attachment() and hasattr(self.datum_obj, "MapPathParameter"):
+                self.datum_obj.MapPathParameter = parameter
+            self._update_params({"parameter": parameter})
+
+        # Update position display
+        pos = self.datum_obj.Placement.Base
+        self.pos_label.setText(f"({pos.x:.2f}, {pos.y:.2f}, {pos.z:.2f})")
+
+        App.ActiveDocument.recompute()
+
+    def _update_params(self, new_values):
+        """Update stored parameters with new values."""
+        params_json = getattr(self.datum_obj, "ZTools_Params", "{}")
+        try:
+            params = json.loads(params_json)
+        except json.JSONDecodeError:
+            params = {}
+
+        params.update(new_values)
+
+        # Re-serialize (handle vectors)
+        serializable = {}
+        for k, v in params.items():
+            if hasattr(v, "x") and hasattr(v, "y") and hasattr(v, "z"):
+                serializable[k] = {"_type": "Vector", "x": v.x, "y": v.y, "z": v.z}
+            else:
+                serializable[k] = v
+
+        self.datum_obj.ZTools_Params = json.dumps(serializable)
+
+    def accept(self):
+        """Handle OK button - apply changes."""
+        # Update label if changed
+        new_label = self.name_edit.text().strip()
+        if new_label and new_label != self.datum_obj.Label:
+            self.datum_obj.Label = new_label
+
+        App.ActiveDocument.recompute()
+        return True
+
+    def reject(self):
+        """Handle Cancel button - restore original placement."""
+        self.datum_obj.Placement = self.original_placement
+        App.ActiveDocument.recompute()
+        return True
+
+    def getStandardButtons(self):
+        """Return dialog buttons."""
+        return QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel

reference/ztools/ztools/ztools/commands/pattern_commands.py

@@ -0,0 +1,206 @@
+# ztools/commands/pattern_commands.py
+# Rotated Linear Pattern command
+# Creates a linear pattern with incremental rotation for each instance
+
+import FreeCAD as App
+import FreeCADGui as Gui
+import Part
+
+from ztools.resources.icons import get_icon
+
+
+class RotatedLinearPatternFeature:
+    """Feature object for rotated linear pattern."""
+
+    def __init__(self, obj):
+        obj.Proxy = self
+
+        obj.addProperty(
+            "App::PropertyLink", "Source", "Base", "Source object to pattern"
+        )
+        obj.addProperty(
+            "App::PropertyVector",
+            "Direction",
+            "Pattern",
+            "Direction of the linear pattern",
+        )
+        obj.addProperty(
+            "App::PropertyDistance", "Length", "Pattern", "Total length of the pattern"
+        )
+        obj.addProperty(
+            "App::PropertyInteger",
+            "Occurrences",
+            "Pattern",
+            "Number of occurrences (including original)",
+        )
+        obj.addProperty(
+            "App::PropertyVector",
+            "RotationAxis",
+            "Rotation",
+            "Axis of rotation for each instance",
+        )
+        obj.addProperty(
+            "App::PropertyAngle",
+            "RotationAngle",
+            "Rotation",
+            "Rotation angle increment per instance",
+        )
+        obj.addProperty(
+            "App::PropertyVector",
+            "RotationCenter",
+            "Rotation",
+            "Center point for rotation (relative to each instance)",
+        )
+        obj.addProperty(
+            "App::PropertyBool",
+            "CumulativeRotation",
+            "Rotation",
+            "If true, rotation accumulates with each instance",
+        )
+
+        # Set defaults
+        obj.Direction = App.Vector(1, 0, 0)
+        obj.Length = 100.0
+        obj.Occurrences = 3
+        obj.RotationAxis = App.Vector(0, 0, 1)
+        obj.RotationAngle = 15.0
+        obj.RotationCenter = App.Vector(0, 0, 0)
+        obj.CumulativeRotation = True
+
+        # Store metadata for ztools tracking
+        obj.addProperty(
+            "App::PropertyString",
+            "ZTools_Type",
+            "ZTools",
+            "ZTools feature type",
+        )
+        obj.ZTools_Type = "RotatedLinearPattern"
+
+    def execute(self, obj):
+        """Recompute the feature."""
+        if not obj.Source or not hasattr(obj.Source, "Shape"):
+            return
+
+        source_shape = obj.Source.Shape
+        if source_shape.isNull():
+            return
+
+        occurrences = max(1, obj.Occurrences)
+        if occurrences == 1:
+            obj.Shape = source_shape.copy()
+            return
+
+        # Calculate spacing
+        direction = App.Vector(obj.Direction)
+        if direction.Length < 1e-6:
+            direction = App.Vector(1, 0, 0)
+        direction.normalize()
+
+        spacing = float(obj.Length) / (occurrences - 1) if occurrences > 1 else 0
+
+        shapes = []
+        for i in range(occurrences):
+            # Create translation
+            offset = direction * spacing * i
+            translated = source_shape.copy()
+            translated.translate(offset)
+
+            # Apply rotation
+            if abs(float(obj.RotationAngle)) > 1e-6:
+                if obj.CumulativeRotation:
+                    angle = float(obj.RotationAngle) * i
+                else:
+                    angle = float(obj.RotationAngle)
+
+                # Rotation center is relative to the translated position
+                center = App.Vector(obj.RotationCenter) + offset
+                axis = App.Vector(obj.RotationAxis)
+                if axis.Length < 1e-6:
+                    axis = App.Vector(0, 0, 1)
+                axis.normalize()
+
+                translated.rotate(center, axis, angle)
+
+            shapes.append(translated)
+
+        if shapes:
+            obj.Shape = Part.makeCompound(shapes)
+
+    def onChanged(self, obj, prop):
+        """Handle property changes."""
+        pass
+
+
+class RotatedLinearPatternViewProvider:
+    """View provider for rotated linear pattern."""
+
+    def __init__(self, vobj):
+        vobj.Proxy = self
+
+    def attach(self, vobj):
+        self.Object = vobj.Object
+
+    def updateData(self, obj, prop):
+        pass
+
+    def onChanged(self, vobj, prop):
+        pass
+
+    def getIcon(self):
+        return get_icon("rotated_pattern")
+
+    def __getstate__(self):
+        return None
+
+    def __setstate__(self, state):
+        return None
+
+
+class RotatedLinearPatternCommand:
+    """Command to create a rotated linear pattern."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("rotated_pattern"),
+            "MenuText": "Rotated Linear Pattern",
+            "ToolTip": "Create a linear pattern with rotation for each instance",
+        }
+
+    def IsActive(self):
+        """Command is active when there's a document and selection."""
+        if App.ActiveDocument is None:
+            return False
+        sel = Gui.Selection.getSelection()
+        return len(sel) == 1
+
+    def Activated(self):
+        """Execute the command."""
+        sel = Gui.Selection.getSelection()
+        if not sel:
+            App.Console.PrintError("Please select an object first\n")
+            return
+
+        source = sel[0]
+
+        # Create the feature
+        doc = App.ActiveDocument
+        obj = doc.addObject("Part::FeaturePython", "RotatedLinearPattern")
+        RotatedLinearPatternFeature(obj)
+        RotatedLinearPatternViewProvider(obj.ViewObject)
+
+        obj.Source = source
+        obj.Label = f"RotatedPattern_{source.Label}"
+
+        # Hide source object
+        if hasattr(source, "ViewObject"):
+            source.ViewObject.Visibility = False
+
+        doc.recompute()
+
+        App.Console.PrintMessage(
+            f"Created rotated linear pattern from {source.Label}\n"
+        )
+
+
+# Register the command
+Gui.addCommand("ZTools_RotatedLinearPattern", RotatedLinearPatternCommand())

reference/ztools/ztools/ztools/commands/pocket_commands.py

@@ -0,0 +1,601 @@
+# ztools/commands/pocket_commands.py
+# Enhanced Pocket feature with "Flip side to cut" option
+#
+# This provides an enhanced pocket workflow that includes the ability to
+# cut material OUTSIDE the sketch profile rather than inside (like SOLIDWORKS
+# "Flip side to cut" feature).
+
+import FreeCAD as App
+import FreeCADGui as Gui
+import Part
+from PySide import QtCore, QtGui
+
+
+class EnhancedPocketTaskPanel:
+    """Task panel for creating enhanced pocket features with flip option."""
+
+    # Pocket type modes matching FreeCAD's PartDesign::Pocket
+    POCKET_TYPES = [
+        ("Dimension", 0),
+        ("Through All", 1),
+        ("To First", 2),
+        ("Up To Face", 3),
+        ("Two Dimensions", 4),
+    ]
+
+    def __init__(self, sketch=None):
+        self.form = QtGui.QWidget()
+        self.form.setWindowTitle("ztools Enhanced Pocket")
+        self.sketch = sketch
+        self.selected_face = None
+        self.setup_ui()
+        self.setup_selection_observer()
+
+        # If sketch provided, show it in selection
+        if self.sketch:
+            self.update_sketch_display()
+
+    def setup_ui(self):
+        layout = QtGui.QVBoxLayout(self.form)
+
+        # Sketch selection display
+        sketch_group = QtGui.QGroupBox("Sketch")
+        sketch_layout = QtGui.QVBoxLayout(sketch_group)
+        self.sketch_label = QtGui.QLabel("No sketch selected")
+        self.sketch_label.setWordWrap(True)
+        sketch_layout.addWidget(self.sketch_label)
+        layout.addWidget(sketch_group)
+
+        # Type selection
+        type_group = QtGui.QGroupBox("Type")
+        type_layout = QtGui.QFormLayout(type_group)
+
+        self.type_combo = QtGui.QComboBox()
+        for label, _ in self.POCKET_TYPES:
+            self.type_combo.addItem(label)
+        self.type_combo.currentIndexChanged.connect(self.on_type_changed)
+        type_layout.addRow("Type:", self.type_combo)
+
+        layout.addWidget(type_group)
+
+        # Dimensions group
+        self.dim_group = QtGui.QGroupBox("Dimensions")
+        self.dim_layout = QtGui.QFormLayout(self.dim_group)
+
+        # Length input
+        self.length_spin = QtGui.QDoubleSpinBox()
+        self.length_spin.setRange(0.001, 10000)
+        self.length_spin.setValue(10.0)
+        self.length_spin.setSuffix(" mm")
+        self.length_spin.setDecimals(3)
+        self.dim_layout.addRow("Length:", self.length_spin)
+
+        # Length2 input (for Two Dimensions mode)
+        self.length2_spin = QtGui.QDoubleSpinBox()
+        self.length2_spin.setRange(0.001, 10000)
+        self.length2_spin.setValue(10.0)
+        self.length2_spin.setSuffix(" mm")
+        self.length2_spin.setDecimals(3)
+        self.length2_label = QtGui.QLabel("Length 2:")
+        # Hidden by default
+        self.length2_spin.setVisible(False)
+        self.length2_label.setVisible(False)
+        self.dim_layout.addRow(self.length2_label, self.length2_spin)
+
+        layout.addWidget(self.dim_group)
+
+        # Up To Face selection (hidden by default)
+        self.face_group = QtGui.QGroupBox("Up To Face")
+        face_layout = QtGui.QVBoxLayout(self.face_group)
+        self.face_label = QtGui.QLabel("Select a face...")
+        self.face_label.setWordWrap(True)
+        face_layout.addWidget(self.face_label)
+        self.face_group.setVisible(False)
+        layout.addWidget(self.face_group)
+
+        # Direction options
+        dir_group = QtGui.QGroupBox("Direction")
+        dir_layout = QtGui.QVBoxLayout(dir_group)
+
+        self.reversed_cb = QtGui.QCheckBox("Reversed")
+        self.reversed_cb.setToolTip("Reverse the pocket direction")
+        dir_layout.addWidget(self.reversed_cb)
+
+        self.symmetric_cb = QtGui.QCheckBox("Symmetric to plane")
+        self.symmetric_cb.setToolTip(
+            "Extend pocket equally on both sides of sketch plane"
+        )
+        self.symmetric_cb.toggled.connect(self.on_symmetric_changed)
+        dir_layout.addWidget(self.symmetric_cb)
+
+        layout.addWidget(dir_group)
+
+        # FLIP SIDE TO CUT - The main new feature
+        flip_group = QtGui.QGroupBox("Flip Side to Cut")
+        flip_layout = QtGui.QVBoxLayout(flip_group)
+
+        self.flipped_cb = QtGui.QCheckBox("Cut outside profile (keep inside)")
+        self.flipped_cb.setToolTip(
+            "Instead of removing material inside the sketch profile,\n"
+            "remove material OUTSIDE the profile.\n\n"
+            "This keeps only the material covered by the sketch,\n"
+            "similar to SOLIDWORKS 'Flip side to cut' option."
+        )
+        flip_layout.addWidget(self.flipped_cb)
+
+        # Info label
+        flip_info = QtGui.QLabel(
+            "<i>When enabled, material outside the sketch profile is removed,\n"
+            "leaving only the material inside the sketch boundary.</i>"
+        )
+        flip_info.setWordWrap(True)
+        flip_info.setStyleSheet("color: gray; font-size: 10px;")
+        flip_layout.addWidget(flip_info)
+
+        layout.addWidget(flip_group)
+
+        # Taper angle (optional)
+        taper_group = QtGui.QGroupBox("Taper")
+        taper_layout = QtGui.QFormLayout(taper_group)
+
+        self.taper_spin = QtGui.QDoubleSpinBox()
+        self.taper_spin.setRange(-89.99, 89.99)
+        self.taper_spin.setValue(0.0)
+        self.taper_spin.setSuffix(" °")
+        self.taper_spin.setDecimals(2)
+        taper_layout.addRow("Taper Angle:", self.taper_spin)
+
+        layout.addWidget(taper_group)
+
+        # Create button
+        self.create_btn = QtGui.QPushButton("Create Pocket")
+        self.create_btn.clicked.connect(self.on_create)
+        layout.addWidget(self.create_btn)
+
+        layout.addStretch()
+
+    def setup_selection_observer(self):
+        """Setup selection observer to track user selections."""
+
+        class SelectionObserver:
+            def __init__(self, panel):
+                self.panel = panel
+
+            def addSelection(self, doc, obj, sub, pos):
+                self.panel.on_selection_changed()
+
+            def removeSelection(self, doc, obj, sub):
+                self.panel.on_selection_changed()
+
+            def clearSelection(self, doc):
+                self.panel.on_selection_changed()
+
+        self.observer = SelectionObserver(self)
+        Gui.Selection.addObserver(self.observer)
+
+    def on_selection_changed(self):
+        """Handle selection changes."""
+        sel = Gui.Selection.getSelectionEx()
+
+        for s in sel:
+            obj = s.Object
+
+            # Check if it's a sketch (for sketch selection)
+            if obj.TypeId == "Sketcher::SketchObject" and not self.sketch:
+                self.sketch = obj
+                self.update_sketch_display()
+
+            # Check for face selection (for Up To Face mode)
+            if s.SubElementNames:
+                for sub in s.SubElementNames:
+                    if sub.startswith("Face"):
+                        shape = obj.Shape.getElement(sub)
+                        if isinstance(shape, Part.Face):
+                            self.selected_face = (obj, sub)
+                            self.face_label.setText(f"Face: {obj.Name}.{sub}")
+
+    def update_sketch_display(self):
+        """Update sketch label."""
+        if self.sketch:
+            self.sketch_label.setText(f"Sketch: {self.sketch.Label}")
+        else:
+            self.sketch_label.setText("No sketch selected")
+
+    def on_type_changed(self, index):
+        """Update UI based on pocket type."""
+        pocket_type = self.POCKET_TYPES[index][1]
+
+        # Show/hide dimension inputs based on type
+        show_length = pocket_type in [0, 4]  # Dimension or Two Dimensions
+        self.dim_group.setVisible(show_length or pocket_type == 4)
+        self.length_spin.setVisible(show_length)
+
+        # Two Dimensions mode
+        show_length2 = pocket_type == 4
+        self.length2_spin.setVisible(show_length2)
+        self.length2_label.setVisible(show_length2)
+
+        # Up To Face mode
+        self.face_group.setVisible(pocket_type == 3)
+
+    def on_symmetric_changed(self, checked):
+        """Handle symmetric checkbox change."""
+        if checked:
+            self.reversed_cb.setEnabled(False)
+            self.reversed_cb.setChecked(False)
+        else:
+            self.reversed_cb.setEnabled(True)
+
+    def get_body(self):
+        """Get the active PartDesign body."""
+        if hasattr(Gui, "ActiveDocument") and Gui.ActiveDocument:
+            active_view = Gui.ActiveDocument.ActiveView
+            if hasattr(active_view, "getActiveObject"):
+                body = active_view.getActiveObject("pdbody")
+                if body:
+                    return body
+
+        # Fallback: find body containing the sketch
+        if self.sketch:
+            for obj in App.ActiveDocument.Objects:
+                if obj.TypeId == "PartDesign::Body":
+                    if self.sketch in obj.Group:
+                        return obj
+
+        return None
+
+    def on_create(self):
+        """Create the pocket feature."""
+        if not self.sketch:
+            QtGui.QMessageBox.warning(
+                self.form, "Error", "Please select a sketch first."
+            )
+            return
+
+        body = self.get_body()
+        if not body:
+            QtGui.QMessageBox.warning(
+                self.form, "Error", "No active body found. Please activate a body."
+            )
+            return
+
+        try:
+            App.ActiveDocument.openTransaction("Create Enhanced Pocket")
+
+            flipped = self.flipped_cb.isChecked()
+
+            if flipped:
+                self.create_flipped_pocket(body)
+            else:
+                self.create_standard_pocket(body)
+
+            App.ActiveDocument.commitTransaction()
+            App.ActiveDocument.recompute()
+
+            App.Console.PrintMessage("Enhanced Pocket created successfully\n")
+
+        except Exception as e:
+            App.ActiveDocument.abortTransaction()
+            App.Console.PrintError(f"Failed to create pocket: {e}\n")
+            QtGui.QMessageBox.critical(self.form, "Error", str(e))
+
+    def create_standard_pocket(self, body):
+        """Create a standard PartDesign Pocket."""
+        pocket = body.newObject("PartDesign::Pocket", "Pocket")
+        pocket.Profile = self.sketch
+
+        # Set type
+        pocket_type = self.POCKET_TYPES[self.type_combo.currentIndex()][1]
+        pocket.Type = pocket_type
+
+        # Set dimensions
+        pocket.Length = self.length_spin.value()
+        if pocket_type == 4:  # Two Dimensions
+            pocket.Length2 = self.length2_spin.value()
+
+        # Set direction options
+        pocket.Reversed = self.reversed_cb.isChecked()
+        pocket.Midplane = self.symmetric_cb.isChecked()
+
+        # Set taper
+        if abs(self.taper_spin.value()) > 0.001:
+            pocket.TaperAngle = self.taper_spin.value()
+
+        # Up To Face
+        if pocket_type == 3 and self.selected_face:
+            obj, sub = self.selected_face
+            pocket.UpToFace = (obj, [sub])
+
+        # Hide sketch
+        self.sketch.ViewObject.Visibility = False
+
+        # Add metadata
+        pocket.addProperty(
+            "App::PropertyString", "ZTools_Type", "ZTools", "ZTools feature type"
+        )
+        pocket.ZTools_Type = "EnhancedPocket"
+
+    def create_flipped_pocket(self, body):
+        """Create a flipped pocket (cut outside profile).
+
+        This uses Boolean Common operation: keeps only the intersection
+        of the body with the extruded profile.
+        """
+        # Get current body shape (the Tip)
+        tip = body.Tip
+        if not tip or not hasattr(tip, "Shape"):
+            raise ValueError("Body has no valid tip shape")
+
+        base_shape = tip.Shape.copy()
+
+        # Get sketch profile
+        sketch_shape = self.sketch.Shape
+        if not sketch_shape.Wires:
+            raise ValueError("Sketch has no closed profile")
+
+        # Create face from sketch wires
+        wires = sketch_shape.Wires
+        if len(wires) == 0:
+            raise ValueError("Sketch has no wires")
+
+        # Create a face from the outer wire
+        # For multiple wires, the first is outer, rest are holes
+        face = Part.Face(wires[0])
+        if len(wires) > 1:
+            # Handle holes in the profile
+            face = Part.Face(wires)
+
+        # Get extrusion direction (sketch normal)
+        sketch_placement = self.sketch.Placement
+        normal = sketch_placement.Rotation.multVec(App.Vector(0, 0, 1))
+
+        if self.reversed_cb.isChecked():
+            normal = normal.negative()
+
+        # Calculate extrusion length/direction
+        pocket_type = self.POCKET_TYPES[self.type_combo.currentIndex()][1]
+
+        if pocket_type == 0:  # Dimension
+            length = self.length_spin.value()
+            if self.symmetric_cb.isChecked():
+                # Symmetric: extrude half in each direction
+                half_length = length / 2
+                tool_solid = face.extrude(normal * half_length)
+                tool_solid2 = face.extrude(normal.negative() * half_length)
+                tool_solid = tool_solid.fuse(tool_solid2)
+            else:
+                tool_solid = face.extrude(normal * length)
+
+        elif pocket_type == 1:  # Through All
+            # Use a large value based on bounding box
+            bbox = base_shape.BoundBox
+            diagonal = bbox.DiagonalLength
+            length = diagonal * 2
+
+            if self.symmetric_cb.isChecked():
+                tool_solid = face.extrude(normal * length)
+                tool_solid2 = face.extrude(normal.negative() * length)
+                tool_solid = tool_solid.fuse(tool_solid2)
+            else:
+                tool_solid = face.extrude(normal * length)
+
+        elif pocket_type == 4:  # Two Dimensions
+            length1 = self.length_spin.value()
+            length2 = self.length2_spin.value()
+            tool_solid = face.extrude(normal * length1)
+            tool_solid2 = face.extrude(normal.negative() * length2)
+            tool_solid = tool_solid.fuse(tool_solid2)
+
+        else:
+            # For other types, fall back to Through All behavior
+            bbox = base_shape.BoundBox
+            length = bbox.DiagonalLength * 2
+            tool_solid = face.extrude(normal * length)
+
+        # Apply taper if specified
+        # Note: Taper with flipped pocket is complex, skip for now
+        if abs(self.taper_spin.value()) > 0.001:
+            App.Console.PrintWarning(
+                "Taper angle is not supported with Flip Side to Cut. Ignoring.\n"
+            )
+
+        # Boolean Common: keep only intersection
+        result_shape = base_shape.common(tool_solid)
+
+        if result_shape.isNull() or result_shape.Volume < 1e-6:
+            raise ValueError(
+                "Flip pocket resulted in empty shape. "
+                "Make sure the sketch profile intersects with the body."
+            )
+
+        # Create a FeaturePython object to hold the result
+        feature = body.newObject("PartDesign::FeaturePython", "FlippedPocket")
+
+        # Set up the feature
+        FlippedPocketFeature(feature, self.sketch, result_shape)
+        FlippedPocketViewProvider(feature.ViewObject)
+
+        # Store parameters as properties
+        feature.addProperty("App::PropertyDistance", "Length", "Pocket", "Pocket depth")
+        feature.Length = self.length_spin.value()
+
+        feature.addProperty(
+            "App::PropertyBool", "Reversed", "Pocket", "Reverse direction"
+        )
+        feature.Reversed = self.reversed_cb.isChecked()
+
+        feature.addProperty(
+            "App::PropertyBool", "Symmetric", "Pocket", "Symmetric to plane"
+        )
+        feature.Symmetric = self.symmetric_cb.isChecked()
+
+        feature.addProperty(
+            "App::PropertyInteger", "PocketType", "Pocket", "Pocket type"
+        )
+        feature.PocketType = pocket_type
+
+        # Hide sketch
+        self.sketch.ViewObject.Visibility = False
+
+    def accept(self):
+        """Called when OK is clicked."""
+        Gui.Selection.removeObserver(self.observer)
+        return True
+
+    def reject(self):
+        """Called when Cancel is clicked."""
+        Gui.Selection.removeObserver(self.observer)
+        return True
+
+    def getStandardButtons(self):
+        return QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel
+
+
+class FlippedPocketFeature:
+    """Feature object for flipped pocket (cuts outside profile)."""
+
+    def __init__(self, obj, sketch, initial_shape):
+        obj.Proxy = self
+        self.sketch = sketch
+
+        # Store reference to sketch
+        obj.addProperty("App::PropertyLink", "Profile", "Base", "Sketch profile")
+        obj.Profile = sketch
+
+        # ZTools metadata
+        obj.addProperty(
+            "App::PropertyString", "ZTools_Type", "ZTools", "ZTools feature type"
+        )
+        obj.ZTools_Type = "FlippedPocket"
+
+        # Set initial shape
+        obj.Shape = initial_shape
+
+    def execute(self, obj):
+        """Recompute the flipped pocket."""
+        if not obj.Profile:
+            return
+
+        # Get the base feature (previous feature in the body)
+        body = obj.getParentGeoFeatureGroup()
+        if not body:
+            return
+
+        # Find the feature before this one
+        base_feature = None
+        group = body.Group
+        for i, feat in enumerate(group):
+            if feat == obj and i > 0:
+                base_feature = group[i - 1]
+                break
+
+        if not base_feature or not hasattr(base_feature, "Shape"):
+            return
+
+        base_shape = base_feature.Shape.copy()
+        sketch = obj.Profile
+
+        # Get sketch profile
+        sketch_shape = sketch.Shape
+        if not sketch_shape.Wires:
+            return
+
+        wires = sketch_shape.Wires
+        face = Part.Face(wires[0])
+        if len(wires) > 1:
+            face = Part.Face(wires)
+
+        # Get direction
+        sketch_placement = sketch.Placement
+        normal = sketch_placement.Rotation.multVec(App.Vector(0, 0, 1))
+
+        if hasattr(obj, "Reversed") and obj.Reversed:
+            normal = normal.negative()
+
+        # Get length
+        length = obj.Length.Value if hasattr(obj, "Length") else 10.0
+        symmetric = obj.Symmetric if hasattr(obj, "Symmetric") else False
+        pocket_type = obj.PocketType if hasattr(obj, "PocketType") else 0
+
+        # Create tool solid
+        if pocket_type == 1:  # Through All
+            bbox = base_shape.BoundBox
+            length = bbox.DiagonalLength * 2
+
+        if symmetric:
+            half = length / 2
+            tool_solid = face.extrude(normal * half)
+            tool_solid2 = face.extrude(normal.negative() * half)
+            tool_solid = tool_solid.fuse(tool_solid2)
+        else:
+            tool_solid = face.extrude(normal * length)
+
+        # Boolean Common
+        result_shape = base_shape.common(tool_solid)
+        obj.Shape = result_shape
+
+    def onChanged(self, obj, prop):
+        """Handle property changes."""
+        pass
+
+
+class FlippedPocketViewProvider:
+    """View provider for flipped pocket."""
+
+    def __init__(self, vobj):
+        vobj.Proxy = self
+
+    def attach(self, vobj):
+        self.Object = vobj.Object
+
+    def updateData(self, obj, prop):
+        pass
+
+    def onChanged(self, vobj, prop):
+        pass
+
+    def getIcon(self):
+        from ztools.resources.icons import get_icon
+
+        return get_icon("pocket_flipped")
+
+    def __getstate__(self):
+        return None
+
+    def __setstate__(self, state):
+        return None
+
+
+class ZTools_EnhancedPocket:
+    """Command to create enhanced pocket with flip option."""
+
+    def GetResources(self):
+        from ztools.resources.icons import get_icon
+
+        return {
+            "Pixmap": get_icon("pocket_enhanced"),
+            "MenuText": "Enhanced Pocket",
+            "ToolTip": (
+                "Create a pocket with additional options including\n"
+                "'Flip side to cut' - removes material outside the sketch profile"
+            ),
+        }
+
+    def Activated(self):
+        # Check if a sketch is selected
+        sketch = None
+        sel = Gui.Selection.getSelection()
+        for obj in sel:
+            if obj.TypeId == "Sketcher::SketchObject":
+                sketch = obj
+                break
+
+        panel = EnhancedPocketTaskPanel(sketch)
+        Gui.Control.showDialog(panel)
+
+    def IsActive(self):
+        return App.ActiveDocument is not None
+
+
+# Register the command
+Gui.addCommand("ZTools_EnhancedPocket", ZTools_EnhancedPocket())

reference/ztools/ztools/ztools/commands/spreadsheet_commands.py

@@ -0,0 +1,567 @@
+# ztools/commands/spreadsheet_commands.py
+# Enhanced spreadsheet formatting tools for FreeCAD
+# Provides quick formatting toolbar for cell styling
+
+import FreeCAD as App
+import FreeCADGui as Gui
+from PySide import QtCore, QtGui
+
+from ztools.resources.icons import get_icon
+
+# =============================================================================
+# Helper Functions
+# =============================================================================
+
+
+def get_active_spreadsheet():
+    """Get the currently active spreadsheet object and its view.
+
+    Returns:
+        tuple: (sheet_object, sheet_view) or (None, None)
+    """
+    doc = App.ActiveDocument
+    if not doc:
+        return None, None
+
+    # Get MDI area and active subwindow
+    main_window = Gui.getMainWindow()
+    mdi = main_window.centralWidget()
+    if not mdi:
+        return None, None
+
+    subwindow = mdi.activeSubWindow()
+    if not subwindow:
+        return None, None
+
+    # Get widget from subwindow
+    widget = subwindow.widget()
+    if not widget:
+        return None, None
+
+    # Check if it's a spreadsheet view by looking for the table view
+    # FreeCAD's spreadsheet view contains a QTableView
+    table_view = None
+    if hasattr(widget, "findChild"):
+        table_view = widget.findChild(QtGui.QTableView)
+
+    if not table_view:
+        # Try if widget itself is the table view
+        if isinstance(widget, QtGui.QTableView):
+            table_view = widget
+        else:
+            return None, None
+
+    # Get the spreadsheet object from window title
+    # Window title format varies: "Spreadsheet" or "Spreadsheet - DocName"
+    title = subwindow.windowTitle()
+    sheet_name = title.split(" - ")[0].split(" : ")[0].strip()
+
+    # Try to find the sheet object
+    sheet = doc.getObject(sheet_name)
+    if sheet and sheet.TypeId == "Spreadsheet::Sheet":
+        return sheet, table_view
+
+    # Fallback: search for any spreadsheet object
+    for obj in doc.Objects:
+        if obj.TypeId == "Spreadsheet::Sheet":
+            return obj, table_view
+
+    return None, None
+
+
+def get_selected_cells():
+    """Get list of selected cell addresses from active spreadsheet.
+
+    Returns:
+        tuple: (sheet_object, list_of_cell_addresses) or (None, [])
+    """
+    sheet, table_view = get_active_spreadsheet()
+    if not sheet or not table_view:
+        return None, []
+
+    # Get selection model
+    selection_model = table_view.selectionModel()
+    if not selection_model:
+        return sheet, []
+
+    indexes = selection_model.selectedIndexes()
+    if not indexes:
+        return sheet, []
+
+    cells = []
+    for idx in indexes:
+        col = idx.column()
+        row = idx.row()
+
+        # Convert to cell address (A1 notation)
+        # Handle columns beyond Z (AA, AB, etc.)
+        col_str = ""
+        temp_col = col
+        while temp_col >= 0:
+            col_str = chr(65 + (temp_col % 26)) + col_str
+            temp_col = temp_col // 26 - 1
+
+        cell_addr = f"{col_str}{row + 1}"
+        cells.append(cell_addr)
+
+    return sheet, cells
+
+
+def column_to_index(col_str):
+    """Convert column string (A, B, ..., Z, AA, AB, ...) to index."""
+    result = 0
+    for char in col_str:
+        result = result * 26 + (ord(char) - ord("A") + 1)
+    return result - 1
+
+
+# =============================================================================
+# Style Commands (Bold, Italic, Underline)
+# =============================================================================
+
+
+class ZTools_SpreadsheetStyleBold:
+    """Toggle bold style on selected cells."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_bold"),
+            "MenuText": "Bold",
+            "ToolTip": "Toggle bold style on selected cells (Ctrl+B)",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Toggle Bold")
+
+        try:
+            for cell in cells:
+                current = sheet.getStyle(cell) or ""
+                styles = set(s.strip() for s in current.split("|") if s.strip())
+
+                if "bold" in styles:
+                    styles.discard("bold")
+                else:
+                    styles.add("bold")
+
+                new_style = "|".join(sorted(styles)) if styles else ""
+                sheet.setStyle(cell, new_style)
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to toggle bold: {e}\n")
+
+
+class ZTools_SpreadsheetStyleItalic:
+    """Toggle italic style on selected cells."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_italic"),
+            "MenuText": "Italic",
+            "ToolTip": "Toggle italic style on selected cells (Ctrl+I)",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Toggle Italic")
+
+        try:
+            for cell in cells:
+                current = sheet.getStyle(cell) or ""
+                styles = set(s.strip() for s in current.split("|") if s.strip())
+
+                if "italic" in styles:
+                    styles.discard("italic")
+                else:
+                    styles.add("italic")
+
+                new_style = "|".join(sorted(styles)) if styles else ""
+                sheet.setStyle(cell, new_style)
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to toggle italic: {e}\n")
+
+
+class ZTools_SpreadsheetStyleUnderline:
+    """Toggle underline style on selected cells."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_underline"),
+            "MenuText": "Underline",
+            "ToolTip": "Toggle underline style on selected cells (Ctrl+U)",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Toggle Underline")
+
+        try:
+            for cell in cells:
+                current = sheet.getStyle(cell) or ""
+                styles = set(s.strip() for s in current.split("|") if s.strip())
+
+                if "underline" in styles:
+                    styles.discard("underline")
+                else:
+                    styles.add("underline")
+
+                new_style = "|".join(sorted(styles)) if styles else ""
+                sheet.setStyle(cell, new_style)
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to toggle underline: {e}\n")
+
+
+# =============================================================================
+# Alignment Commands
+# =============================================================================
+
+
+class ZTools_SpreadsheetAlignLeft:
+    """Align cell content to the left."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_align_left"),
+            "MenuText": "Align Left",
+            "ToolTip": "Align selected cells to the left",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Align Left")
+
+        try:
+            for cell in cells:
+                sheet.setAlignment(cell, "left")
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to align left: {e}\n")
+
+
+class ZTools_SpreadsheetAlignCenter:
+    """Align cell content to the center."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_align_center"),
+            "MenuText": "Align Center",
+            "ToolTip": "Align selected cells to the center",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Align Center")
+
+        try:
+            for cell in cells:
+                sheet.setAlignment(cell, "center")
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to align center: {e}\n")
+
+
+class ZTools_SpreadsheetAlignRight:
+    """Align cell content to the right."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_align_right"),
+            "MenuText": "Align Right",
+            "ToolTip": "Align selected cells to the right",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Align Right")
+
+        try:
+            for cell in cells:
+                sheet.setAlignment(cell, "right")
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to align right: {e}\n")
+
+
+# =============================================================================
+# Color Commands
+# =============================================================================
+
+
+class ZTools_SpreadsheetBgColor:
+    """Set background color of selected cells."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_bg_color"),
+            "MenuText": "Background Color",
+            "ToolTip": "Set background color of selected cells",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        # Show color picker dialog
+        color = QtGui.QColorDialog.getColor(
+            QtCore.Qt.white, Gui.getMainWindow(), "Select Background Color"
+        )
+
+        if not color.isValid():
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Set Background Color")
+
+        try:
+            # FreeCAD expects RGB as tuple of floats 0-1
+            rgb = (
+                color.redF(),
+                color.greenF(),
+                color.blueF(),
+            )
+
+            for cell in cells:
+                sheet.setBackground(cell, rgb)
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to set background color: {e}\n")
+
+
+class ZTools_SpreadsheetTextColor:
+    """Set text color of selected cells."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_text_color"),
+            "MenuText": "Text Color",
+            "ToolTip": "Set text color of selected cells",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        # Show color picker dialog with default white for dark theme
+        initial_color = QtGui.QColor(205, 214, 244)  # Catppuccin Mocha text color
+        color = QtGui.QColorDialog.getColor(
+            initial_color, Gui.getMainWindow(), "Select Text Color"
+        )
+
+        if not color.isValid():
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Set Text Color")
+
+        try:
+            # FreeCAD expects RGB as tuple of floats 0-1
+            rgb = (
+                color.redF(),
+                color.greenF(),
+                color.blueF(),
+            )
+
+            for cell in cells:
+                sheet.setForeground(cell, rgb)
+
+            doc.commitTransaction()
+            doc.recompute()
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to set text color: {e}\n")
+
+
+# =============================================================================
+# Utility Commands
+# =============================================================================
+
+
+class ZTools_SpreadsheetQuickAlias:
+    """Create alias from cell content."""
+
+    def GetResources(self):
+        return {
+            "Pixmap": get_icon("spreadsheet_quick_alias"),
+            "MenuText": "Quick Alias",
+            "ToolTip": "Create alias for selected cell based on adjacent label cell",
+        }
+
+    def IsActive(self):
+        sheet, cells = get_selected_cells()
+        return sheet is not None and len(cells) > 0
+
+    def Activated(self):
+        sheet, cells = get_selected_cells()
+        if not sheet or not cells:
+            App.Console.PrintWarning("No cells selected\n")
+            return
+
+        doc = App.ActiveDocument
+        doc.openTransaction("Quick Alias")
+
+        try:
+            aliases_created = 0
+
+            for cell in cells:
+                # Parse cell address
+                import re
+
+                match = re.match(r"([A-Z]+)(\d+)", cell)
+                if not match:
+                    continue
+
+                col_str = match.group(1)
+                row = int(match.group(2))
+
+                # Get content of cell to the left (label cell)
+                col_idx = column_to_index(col_str)
+                if col_idx > 0:
+                    # Convert back to column string
+                    label_col_idx = col_idx - 1
+                    label_col_str = ""
+                    temp = label_col_idx
+                    while temp >= 0:
+                        label_col_str = chr(65 + (temp % 26)) + label_col_str
+                        temp = temp // 26 - 1
+
+                    label_cell = f"{label_col_str}{row}"
+                    label_content = sheet.getContents(label_cell)
+
+                    if label_content:
+                        # Clean the label to make a valid alias
+                        # Must be alphanumeric + underscore, start with letter
+                        alias = "".join(
+                            c if c.isalnum() or c == "_" else "_" for c in label_content
+                        )
+                        # Ensure it starts with a letter
+                        if alias and not alias[0].isalpha():
+                            alias = "var_" + alias
+                        # Truncate if too long
+                        alias = alias[:30]
+
+                        if alias:
+                            try:
+                                sheet.setAlias(cell, alias)
+                                aliases_created += 1
+                            except Exception as alias_err:
+                                App.Console.PrintWarning(
+                                    f"Could not set alias '{alias}' for {cell}: {alias_err}\n"
+                                )
+
+            doc.commitTransaction()
+            doc.recompute()
+
+            if aliases_created > 0:
+                App.Console.PrintMessage(f"Created {aliases_created} alias(es)\n")
+            else:
+                App.Console.PrintWarning(
+                    "No aliases created. Select value cells with labels to the left.\n"
+                )
+
+        except Exception as e:
+            doc.abortTransaction()
+            App.Console.PrintError(f"Failed to create aliases: {e}\n")
+
+
+# =============================================================================
+# Register Commands
+# =============================================================================
+
+Gui.addCommand("ZTools_SpreadsheetStyleBold", ZTools_SpreadsheetStyleBold())
+Gui.addCommand("ZTools_SpreadsheetStyleItalic", ZTools_SpreadsheetStyleItalic())
+Gui.addCommand("ZTools_SpreadsheetStyleUnderline", ZTools_SpreadsheetStyleUnderline())
+Gui.addCommand("ZTools_SpreadsheetAlignLeft", ZTools_SpreadsheetAlignLeft())
+Gui.addCommand("ZTools_SpreadsheetAlignCenter", ZTools_SpreadsheetAlignCenter())
+Gui.addCommand("ZTools_SpreadsheetAlignRight", ZTools_SpreadsheetAlignRight())
+Gui.addCommand("ZTools_SpreadsheetBgColor", ZTools_SpreadsheetBgColor())
+Gui.addCommand("ZTools_SpreadsheetTextColor", ZTools_SpreadsheetTextColor())
+Gui.addCommand("ZTools_SpreadsheetQuickAlias", ZTools_SpreadsheetQuickAlias())

reference/ztools/ztools/ztools/datums/__init__.py

@@ -0,0 +1,41 @@
+# ztools/datums - Datum creation tools
+from .core import (
+    axis_cylinder_center,
+    # Axes
+    axis_from_2_points,
+    axis_from_edge,
+    axis_intersection_planes,
+    plane_angled,
+    plane_from_3_points,
+    plane_midplane,
+    plane_normal_to_edge,
+    # Planes
+    plane_offset_from_face,
+    plane_offset_from_plane,
+    plane_tangent_to_cylinder,
+    point_at_coordinates,
+    # Points
+    point_at_vertex,
+    point_center_of_circle,
+    point_center_of_face,
+    point_on_edge,
+)
+
+__all__ = [
+    "plane_offset_from_face",
+    "plane_offset_from_plane",
+    "plane_midplane",
+    "plane_from_3_points",
+    "plane_normal_to_edge",
+    "plane_angled",
+    "plane_tangent_to_cylinder",
+    "axis_from_2_points",
+    "axis_from_edge",
+    "axis_cylinder_center",
+    "axis_intersection_planes",
+    "point_at_vertex",
+    "point_at_coordinates",
+    "point_on_edge",
+    "point_center_of_face",
+    "point_center_of_circle",
+]

reference/ztools/ztools/ztools/resources/__init__.py

@@ -0,0 +1,8 @@
+# ztools/resources - Icons and assets
+from .icons import MOCHA, get_icon, save_icons_to_disk
+
+__all__ = [
+    "get_icon",
+    "save_icons_to_disk",
+    "MOCHA",
+]

reference/ztools/ztools/ztools/resources/icons.py

@@ -0,0 +1,513 @@
+# ztools/resources/icons.py
+# Catppuccin Mocha themed icons for ztools
+
+# Catppuccin Mocha Palette — sourced from kindred-addon-sdk
+from kindred_sdk.theme import get_theme_tokens
+
+MOCHA = get_theme_tokens()
+
+
+def _svg_to_base64(svg_content: str) -> str:
+    """Convert SVG string to base64 data URI for FreeCAD."""
+    import base64
+
+    encoded = base64.b64encode(svg_content.encode("utf-8")).decode("utf-8")
+    return f"data:image/svg+xml;base64,{encoded}"
+
+
+# =============================================================================
+# SVG Icon Definitions
+# =============================================================================
+
+# Workbench main icon - stylized "Z"
+ICON_WORKBENCH_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <path d="M8 10 L24 10 L10 22 L24 22" stroke="{MOCHA["mauve"]}" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+  <circle cx="24" cy="10" r="2" fill="{MOCHA["teal"]}"/>
+</svg>'''
+
+# Datum Creator icon - plane with plus
+ICON_DATUM_CREATOR_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Plane representation -->
+  <path d="M6 20 L16 8 L26 20 L16 26 Z" fill="{MOCHA["blue"]}" fill-opacity="0.6" stroke="{MOCHA["sapphire"]}" stroke-width="1.5"/>
+  <!-- Plus sign -->
+  <circle cx="24" cy="8" r="6" fill="{MOCHA["green"]}"/>
+  <path d="M24 5 L24 11 M21 8 L27 8" stroke="{MOCHA["base"]}" stroke-width="2" stroke-linecap="round"/>
+</svg>'''
+
+# Datum Manager icon - stacked planes with list
+ICON_DATUM_MANAGER_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Stacked planes -->
+  <path d="M4 18 L12 12 L20 18 L12 22 Z" fill="{MOCHA["blue"]}" fill-opacity="0.5" stroke="{MOCHA["sapphire"]}" stroke-width="1"/>
+  <path d="M4 14 L12 8 L20 14 L12 18 Z" fill="{MOCHA["mauve"]}" fill-opacity="0.5" stroke="{MOCHA["lavender"]}" stroke-width="1"/>
+  <!-- List lines -->
+  <line x1="22" y1="10" x2="28" y2="10" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="22" y1="16" x2="28" y2="16" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="22" y1="22" x2="28" y2="22" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+</svg>'''
+
+# Plane Offset icon
+ICON_PLANE_OFFSET_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Base plane -->
+  <path d="M4 22 L16 14 L28 22 L16 28 Z" fill="{MOCHA["overlay1"]}" stroke="{MOCHA["overlay2"]}" stroke-width="1"/>
+  <!-- Offset plane -->
+  <path d="M4 14 L16 6 L28 14 L16 20 Z" fill="{MOCHA["blue"]}" fill-opacity="0.7" stroke="{MOCHA["sapphire"]}" stroke-width="1.5"/>
+  <!-- Offset arrow -->
+  <path d="M16 24 L16 18" stroke="{MOCHA["peach"]}" stroke-width="2" stroke-linecap="round"/>
+  <path d="M14 20 L16 17 L18 20" stroke="{MOCHA["peach"]}" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>'''
+
+# Plane Midplane icon
+ICON_PLANE_MIDPLANE_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Top plane -->
+  <path d="M4 10 L16 4 L28 10 L16 14 Z" fill="{MOCHA["overlay1"]}" stroke="{MOCHA["overlay2"]}" stroke-width="1"/>
+  <!-- Middle plane (result) -->
+  <path d="M4 16 L16 10 L28 16 L16 20 Z" fill="{MOCHA["green"]}" fill-opacity="0.7" stroke="{MOCHA["teal"]}" stroke-width="1.5"/>
+  <!-- Bottom plane -->
+  <path d="M4 22 L16 16 L28 22 L16 26 Z" fill="{MOCHA["overlay1"]}" stroke="{MOCHA["overlay2"]}" stroke-width="1"/>
+</svg>'''
+
+# Plane 3 Points icon
+ICON_PLANE_3PT_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Plane -->
+  <path d="M4 20 L16 8 L28 18 L14 28 Z" fill="{MOCHA["blue"]}" fill-opacity="0.6" stroke="{MOCHA["sapphire"]}" stroke-width="1.5"/>
+  <!-- Three points -->
+  <circle cx="8" cy="20" r="3" fill="{MOCHA["peach"]}"/>
+  <circle cx="16" cy="10" r="3" fill="{MOCHA["peach"]}"/>
+  <circle cx="24" cy="18" r="3" fill="{MOCHA["peach"]}"/>
+</svg>'''
+
+# Plane Normal to Edge icon
+ICON_PLANE_NORMAL_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Edge/curve -->
+  <path d="M6 26 Q16 6 26 16" stroke="{MOCHA["yellow"]}" stroke-width="2.5" fill="none" stroke-linecap="round"/>
+  <!-- Plane perpendicular -->
+  <path d="M12 8 L20 12 L20 24 L12 20 Z" fill="{MOCHA["blue"]}" fill-opacity="0.7" stroke="{MOCHA["sapphire"]}" stroke-width="1.5"/>
+  <!-- Point on curve -->
+  <circle cx="16" cy="16" r="2.5" fill="{MOCHA["peach"]}"/>
+</svg>'''
+
+# Plane Angled icon
+ICON_PLANE_ANGLED_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Base plane -->
+  <path d="M4 22 L16 16 L28 22 L16 26 Z" fill="{MOCHA["overlay1"]}" stroke="{MOCHA["overlay2"]}" stroke-width="1"/>
+  <!-- Angled plane -->
+  <path d="M8 10 L20 6 L24 18 L12 22 Z" fill="{MOCHA["mauve"]}" fill-opacity="0.7" stroke="{MOCHA["lavender"]}" stroke-width="1.5"/>
+  <!-- Angle arc -->
+  <path d="M14 20 Q18 18 18 14" stroke="{MOCHA["peach"]}" stroke-width="2" fill="none" stroke-linecap="round"/>
+</svg>'''
+
+# Plane Tangent icon
+ICON_PLANE_TANGENT_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Cylinder outline -->
+  <ellipse cx="12" cy="16" rx="6" ry="10" fill="none" stroke="{MOCHA["yellow"]}" stroke-width="2"/>
+  <!-- Tangent plane -->
+  <path d="M18 6 L28 10 L28 26 L18 22 Z" fill="{MOCHA["blue"]}" fill-opacity="0.7" stroke="{MOCHA["sapphire"]}" stroke-width="1.5"/>
+  <!-- Tangent point -->
+  <circle cx="18" cy="16" r="2.5" fill="{MOCHA["peach"]}"/>
+</svg>'''
+
+# Axis 2 Points icon
+ICON_AXIS_2PT_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Axis line -->
+  <line x1="6" y1="26" x2="26" y2="6" stroke="{MOCHA["red"]}" stroke-width="2.5" stroke-linecap="round"/>
+  <!-- End points -->
+  <circle cx="6" cy="26" r="3" fill="{MOCHA["peach"]}"/>
+  <circle cx="26" cy="6" r="3" fill="{MOCHA["peach"]}"/>
+</svg>'''
+
+# Axis from Edge icon
+ICON_AXIS_EDGE_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Box edge representation -->
+  <path d="M8 24 L8 12 L20 8 L20 20 Z" fill="{MOCHA["surface2"]}" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <!-- Selected edge highlighted -->
+  <line x1="8" y1="24" x2="8" y2="12" stroke="{MOCHA["yellow"]}" stroke-width="3" stroke-linecap="round"/>
+  <!-- Resulting axis -->
+  <line x1="8" y1="28" x2="8" y2="4" stroke="{MOCHA["red"]}" stroke-width="2" stroke-dasharray="4,2"/>
+</svg>'''
+
+# Axis Cylinder Center icon
+ICON_AXIS_CYL_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Cylinder -->
+  <ellipse cx="16" cy="8" rx="8" ry="3" fill="{MOCHA["surface2"]}" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <path d="M8 8 L8 24" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <path d="M24 8 L24 24" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <ellipse cx="16" cy="24" rx="8" ry="3" fill="{MOCHA["surface2"]}" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <!-- Center axis -->
+  <line x1="16" y1="4" x2="16" y2="28" stroke="{MOCHA["red"]}" stroke-width="2.5" stroke-linecap="round"/>
+  <circle cx="16" cy="16" r="2" fill="{MOCHA["peach"]}"/>
+</svg>'''
+
+# Axis Intersection icon
+ICON_AXIS_INTERSECT_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- First plane -->
+  <path d="M4 12 L16 6 L28 12 L16 18 Z" fill="{MOCHA["blue"]}" fill-opacity="0.5" stroke="{MOCHA["sapphire"]}" stroke-width="1"/>
+  <!-- Second plane -->
+  <path d="M4 20 L16 14 L28 20 L16 26 Z" fill="{MOCHA["mauve"]}" fill-opacity="0.5" stroke="{MOCHA["lavender"]}" stroke-width="1"/>
+  <!-- Intersection axis -->
+  <line x1="4" y1="16" x2="28" y2="16" stroke="{MOCHA["red"]}" stroke-width="2.5" stroke-linecap="round"/>
+</svg>'''
+
+# Point at Vertex icon
+ICON_POINT_VERTEX_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Wireframe box corner -->
+  <path d="M10 20 L10 10 L20 6" stroke="{MOCHA["overlay1"]}" stroke-width="1.5" fill="none"/>
+  <path d="M10 20 L20 16 L20 6" stroke="{MOCHA["overlay1"]}" stroke-width="1.5" fill="none"/>
+  <path d="M10 20 L4 24" stroke="{MOCHA["overlay1"]}" stroke-width="1.5" fill="none"/>
+  <!-- Vertex point -->
+  <circle cx="10" cy="20" r="4" fill="{MOCHA["green"]}"/>
+  <circle cx="10" cy="20" r="2" fill="{MOCHA["teal"]}"/>
+</svg>'''
+
+# Point XYZ icon
+ICON_POINT_XYZ_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Coordinate axes -->
+  <line x1="6" y1="24" x2="26" y2="24" stroke="{MOCHA["red"]}" stroke-width="1.5"/>
+  <line x1="6" y1="24" x2="6" y2="6" stroke="{MOCHA["green"]}" stroke-width="1.5"/>
+  <line x1="6" y1="24" x2="16" y2="28" stroke="{MOCHA["blue"]}" stroke-width="1.5"/>
+  <!-- Point -->
+  <circle cx="18" cy="12" r="4" fill="{MOCHA["peach"]}"/>
+  <!-- Projection lines -->
+  <line x1="18" y1="12" x2="18" y2="24" stroke="{MOCHA["overlay1"]}" stroke-width="1" stroke-dasharray="2,2"/>
+  <line x1="18" y1="12" x2="6" y2="12" stroke="{MOCHA["overlay1"]}" stroke-width="1" stroke-dasharray="2,2"/>
+</svg>'''
+
+# Point on Edge icon
+ICON_POINT_EDGE_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Edge/curve -->
+  <path d="M6 24 Q16 4 26 20" stroke="{MOCHA["yellow"]}" stroke-width="2.5" fill="none" stroke-linecap="round"/>
+  <!-- Point on edge -->
+  <circle cx="14" cy="12" r="4" fill="{MOCHA["green"]}"/>
+  <!-- Parameter indicator -->
+  <text x="20" y="10" font-family="monospace" font-size="8" fill="{MOCHA["text"]}">t</text>
+</svg>'''
+
+# Point Face Center icon
+ICON_POINT_FACE_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Face -->
+  <path d="M6 20 L16 10 L26 20 L16 26 Z" fill="{MOCHA["blue"]}" fill-opacity="0.6" stroke="{MOCHA["sapphire"]}" stroke-width="1.5"/>
+  <!-- Center point -->
+  <circle cx="16" cy="19" r="4" fill="{MOCHA["green"]}"/>
+  <circle cx="16" cy="19" r="2" fill="{MOCHA["teal"]}"/>
+</svg>'''
+
+# Point Circle Center icon
+ICON_POINT_CIRCLE_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Circle -->
+  <circle cx="16" cy="16" r="10" fill="none" stroke="{MOCHA["yellow"]}" stroke-width="2.5"/>
+  <!-- Center point -->
+  <circle cx="16" cy="16" r="4" fill="{MOCHA["green"]}"/>
+  <circle cx="16" cy="16" r="2" fill="{MOCHA["teal"]}"/>
+  <!-- Radius line -->
+  <line x1="16" y1="16" x2="26" y2="16" stroke="{MOCHA["overlay1"]}" stroke-width="1" stroke-dasharray="2,2"/>
+</svg>'''
+
+# Rotated Linear Pattern icon - objects along line with rotation
+ICON_ROTATED_PATTERN_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Direction line -->
+  <line x1="4" y1="24" x2="28" y2="24" stroke="{MOCHA["overlay1"]}" stroke-width="1" stroke-dasharray="3,2"/>
+  <!-- First cube (original) -->
+  <rect x="4" y="16" width="6" height="6" fill="{MOCHA["blue"]}" stroke="{MOCHA["sapphire"]}" stroke-width="1"/>
+  <!-- Second cube (rotated 15deg) -->
+  <g transform="translate(14,19) rotate(-15)">
+    <rect x="-3" y="-3" width="6" height="6" fill="{MOCHA["mauve"]}" stroke="{MOCHA["lavender"]}" stroke-width="1"/>
+  </g>
+  <!-- Third cube (rotated 30deg) -->
+  <g transform="translate(24,19) rotate(-30)">
+    <rect x="-3" y="-3" width="6" height="6" fill="{MOCHA["pink"]}" stroke="{MOCHA["flamingo"]}" stroke-width="1"/>
+  </g>
+  <!-- Rotation arrow -->
+  <path d="M24 8 A5 5 0 0 1 19 13" stroke="{MOCHA["peach"]}" stroke-width="1.5" fill="none"/>
+  <path d="M18 11 L19 13 L21 12" stroke="{MOCHA["peach"]}" stroke-width="1.5" fill="none" stroke-linejoin="round"/>
+</svg>'''
+
+# Enhanced Pocket icon - pocket with plus/settings indicator
+ICON_POCKET_ENHANCED_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- 3D block with pocket cutout -->
+  <path d="M6 22 L6 10 L16 6 L26 10 L26 22 L16 26 Z" fill="{MOCHA["surface2"]}" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <path d="M6 10 L16 14 L26 10" stroke="{MOCHA["overlay1"]}" stroke-width="1" fill="none"/>
+  <path d="M16 14 L16 26" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <!-- Pocket depression -->
+  <path d="M10 12 L16 10 L22 12 L22 18 L16 20 L10 18 Z" fill="{MOCHA["base"]}" stroke="{MOCHA["mauve"]}" stroke-width="1.5"/>
+  <!-- Down arrow indicating cut -->
+  <path d="M16 13 L16 17" stroke="{MOCHA["red"]}" stroke-width="2" stroke-linecap="round"/>
+  <path d="M14 15 L16 18 L18 15" stroke="{MOCHA["red"]}" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>'''
+
+# Flipped Pocket icon - pocket cutting outside the profile
+ICON_POCKET_FLIPPED_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Outer material removed (dark) -->
+  <path d="M6 22 L6 10 L16 6 L26 10 L26 22 L16 26 Z" fill="{MOCHA["base"]}" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <path d="M6 10 L16 14 L26 10" stroke="{MOCHA["overlay0"]}" stroke-width="1" fill="none"/>
+  <path d="M16 14 L16 26" stroke="{MOCHA["overlay0"]}" stroke-width="1"/>
+  <!-- Inner remaining material (raised) -->
+  <path d="M10 20 L10 12 L16 10 L22 12 L22 20 L16 22 Z" fill="{MOCHA["surface2"]}" stroke="{MOCHA["teal"]}" stroke-width="1.5"/>
+  <path d="M10 12 L16 14 L22 12" stroke="{MOCHA["overlay1"]}" stroke-width="1" fill="none"/>
+  <path d="M16 14 L16 22" stroke="{MOCHA["overlay1"]}" stroke-width="1"/>
+  <!-- Flip arrows -->
+  <path d="M4 16 L8 14 L8 18 Z" fill="{MOCHA["peach"]}"/>
+  <path d="M28 16 L24 14 L24 18 Z" fill="{MOCHA["peach"]}"/>
+</svg>'''
+
+# Assembly Linear Pattern icon - components along a line
+ICON_ASSEMBLY_LINEAR_PATTERN_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Direction arrow -->
+  <line x1="4" y1="16" x2="26" y2="16" stroke="{MOCHA["overlay1"]}" stroke-width="1.5" stroke-dasharray="3,2"/>
+  <path d="M24 13 L28 16 L24 19" stroke="{MOCHA["overlay1"]}" stroke-width="1.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+  <!-- Component 1 (original) -->
+  <rect x="4" y="10" width="6" height="6" rx="1" fill="{MOCHA["sapphire"]}" stroke="{MOCHA["blue"]}" stroke-width="1"/>
+  <circle cx="7" cy="13" r="1.5" fill="{MOCHA["teal"]}"/>
+  <!-- Component 2 -->
+  <rect x="13" y="10" width="6" height="6" rx="1" fill="{MOCHA["sapphire"]}" stroke="{MOCHA["blue"]}" stroke-width="1"/>
+  <circle cx="16" cy="13" r="1.5" fill="{MOCHA["teal"]}"/>
+  <!-- Component 3 -->
+  <rect x="22" y="10" width="6" height="6" rx="1" fill="{MOCHA["sapphire"]}" stroke="{MOCHA["blue"]}" stroke-width="1"/>
+  <circle cx="25" cy="13" r="1.5" fill="{MOCHA["teal"]}"/>
+  <!-- Count indicator -->
+  <text x="16" y="26" font-family="monospace" font-size="7" fill="{MOCHA["text"]}" text-anchor="middle">1-2-3</text>
+</svg>'''
+
+# Assembly Polar Pattern icon - components around a center
+ICON_ASSEMBLY_POLAR_PATTERN_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Center axis indicator -->
+  <circle cx="16" cy="16" r="2" fill="{MOCHA["peach"]}"/>
+  <circle cx="16" cy="16" r="10" fill="none" stroke="{MOCHA["overlay1"]}" stroke-width="1" stroke-dasharray="3,2"/>
+  <!-- Rotation arrow -->
+  <path d="M23 8 A9 9 0 0 1 26 14" stroke="{MOCHA["green"]}" stroke-width="1.5" fill="none" stroke-linecap="round"/>
+  <path d="M25 11 L26 14 L23 14" stroke="{MOCHA["green"]}" stroke-width="1.5" fill="none" stroke-linejoin="round"/>
+  <!-- Component 1 (top) -->
+  <rect x="13" y="4" width="6" height="5" rx="1" fill="{MOCHA["sapphire"]}" stroke="{MOCHA["blue"]}" stroke-width="1"/>
+  <!-- Component 2 (right) -->
+  <g transform="translate(16,16) rotate(72) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="{MOCHA["mauve"]}" stroke="{MOCHA["lavender"]}" stroke-width="1"/>
+  </g>
+  <!-- Component 3 (bottom-right) -->
+  <g transform="translate(16,16) rotate(144) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="{MOCHA["pink"]}" stroke="{MOCHA["flamingo"]}" stroke-width="1"/>
+  </g>
+  <!-- Component 4 (bottom-left) -->
+  <g transform="translate(16,16) rotate(216) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="{MOCHA["peach"]}" stroke="{MOCHA["maroon"]}" stroke-width="1"/>
+  </g>
+  <!-- Component 5 (left) -->
+  <g transform="translate(16,16) rotate(288) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="{MOCHA["yellow"]}" stroke="{MOCHA["peach"]}" stroke-width="1"/>
+  </g>
+</svg>'''
+
+# =============================================================================
+# Spreadsheet Icons
+# =============================================================================
+
+# Bold text icon
+ICON_SPREADSHEET_BOLD_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <text x="16" y="23" font-family="sans-serif" font-size="18" font-weight="bold" fill="{MOCHA["text"]}" text-anchor="middle">B</text>
+</svg>'''
+
+# Italic text icon
+ICON_SPREADSHEET_ITALIC_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <text x="16" y="23" font-family="serif" font-size="18" font-style="italic" fill="{MOCHA["text"]}" text-anchor="middle">I</text>
+</svg>'''
+
+# Underline text icon
+ICON_SPREADSHEET_UNDERLINE_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <text x="16" y="20" font-family="sans-serif" font-size="16" fill="{MOCHA["text"]}" text-anchor="middle">U</text>
+  <line x1="10" y1="24" x2="22" y2="24" stroke="{MOCHA["text"]}" stroke-width="2"/>
+</svg>'''
+
+# Align left icon
+ICON_SPREADSHEET_ALIGN_LEFT_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <line x1="6" y1="9" x2="26" y2="9" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="6" y1="14" x2="20" y2="14" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="6" y1="19" x2="24" y2="19" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="6" y1="24" x2="16" y2="24" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+</svg>'''
+
+# Align center icon
+ICON_SPREADSHEET_ALIGN_CENTER_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <line x1="6" y1="9" x2="26" y2="9" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="10" y1="14" x2="22" y2="14" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="8" y1="19" x2="24" y2="19" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="12" y1="24" x2="20" y2="24" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+</svg>'''
+
+# Align right icon
+ICON_SPREADSHEET_ALIGN_RIGHT_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <line x1="6" y1="9" x2="26" y2="9" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="12" y1="14" x2="26" y2="14" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="8" y1="19" x2="26" y2="19" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="16" y1="24" x2="26" y2="24" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+</svg>'''
+
+# Background color icon (paint bucket)
+ICON_SPREADSHEET_BG_COLOR_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Paint bucket -->
+  <path d="M10 12 L16 6 L22 12 L22 20 C22 22 20 24 16 24 C12 24 10 22 10 20 Z" fill="{MOCHA["yellow"]}" stroke="{MOCHA["peach"]}" stroke-width="1.5"/>
+  <!-- Handle -->
+  <path d="M16 6 L16 3" stroke="{MOCHA["overlay1"]}" stroke-width="2" stroke-linecap="round"/>
+  <!-- Paint drip -->
+  <ellipse cx="25" cy="22" rx="2" ry="3" fill="{MOCHA["yellow"]}"/>
+</svg>'''
+
+# Text color icon (A with color bar)
+ICON_SPREADSHEET_TEXT_COLOR_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Letter A -->
+  <text x="16" y="20" font-family="sans-serif" font-size="16" font-weight="bold" fill="{MOCHA["text"]}" text-anchor="middle">A</text>
+  <!-- Color bar -->
+  <rect x="8" y="24" width="16" height="3" rx="1" fill="{MOCHA["red"]}"/>
+</svg>'''
+
+# Quick alias icon (tag/label)
+ICON_SPREADSHEET_QUICK_ALIAS_SVG = f'''<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="{MOCHA["surface0"]}"/>
+  <!-- Tag shape -->
+  <path d="M6 10 L18 10 L24 16 L18 22 L6 22 Z" fill="{MOCHA["teal"]}" stroke="{MOCHA["green"]}" stroke-width="1.5"/>
+  <!-- Tag hole -->
+  <circle cx="10" cy="16" r="2" fill="{MOCHA["surface0"]}"/>
+  <!-- Equals sign (alias) -->
+  <line x1="20" y1="12" x2="26" y2="12" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+  <line x1="20" y1="17" x2="26" y2="17" stroke="{MOCHA["text"]}" stroke-width="2" stroke-linecap="round"/>
+</svg>'''
+
+
+# =============================================================================
+# Icon Registry - Base64 encoded for FreeCAD
+# =============================================================================
+
+
+def get_icon(name: str) -> str:
+    """Get icon file path by name.
+
+    Returns the path to an SVG icon file. If the file doesn't exist,
+    it will be created from the embedded SVG definitions.
+    """
+    import os
+
+    # Map of short names to SVG content
+    icons = {
+        "workbench": ICON_WORKBENCH_SVG,
+        "datum_creator": ICON_DATUM_CREATOR_SVG,
+        "datum_manager": ICON_DATUM_MANAGER_SVG,
+        "plane_offset": ICON_PLANE_OFFSET_SVG,
+        "plane_midplane": ICON_PLANE_MIDPLANE_SVG,
+        "plane_3pt": ICON_PLANE_3PT_SVG,
+        "plane_normal": ICON_PLANE_NORMAL_SVG,
+        "plane_angled": ICON_PLANE_ANGLED_SVG,
+        "plane_tangent": ICON_PLANE_TANGENT_SVG,
+        "axis_2pt": ICON_AXIS_2PT_SVG,
+        "axis_edge": ICON_AXIS_EDGE_SVG,
+        "axis_cyl": ICON_AXIS_CYL_SVG,
+        "axis_intersect": ICON_AXIS_INTERSECT_SVG,
+        "point_vertex": ICON_POINT_VERTEX_SVG,
+        "point_xyz": ICON_POINT_XYZ_SVG,
+        "point_edge": ICON_POINT_EDGE_SVG,
+        "point_face": ICON_POINT_FACE_SVG,
+        "point_circle": ICON_POINT_CIRCLE_SVG,
+        "rotated_pattern": ICON_ROTATED_PATTERN_SVG,
+        "pocket_enhanced": ICON_POCKET_ENHANCED_SVG,
+        "pocket_flipped": ICON_POCKET_FLIPPED_SVG,
+        "assembly_linear_pattern": ICON_ASSEMBLY_LINEAR_PATTERN_SVG,
+        "assembly_polar_pattern": ICON_ASSEMBLY_POLAR_PATTERN_SVG,
+        "spreadsheet_bold": ICON_SPREADSHEET_BOLD_SVG,
+        "spreadsheet_italic": ICON_SPREADSHEET_ITALIC_SVG,
+        "spreadsheet_underline": ICON_SPREADSHEET_UNDERLINE_SVG,
+        "spreadsheet_align_left": ICON_SPREADSHEET_ALIGN_LEFT_SVG,
+        "spreadsheet_align_center": ICON_SPREADSHEET_ALIGN_CENTER_SVG,
+        "spreadsheet_align_right": ICON_SPREADSHEET_ALIGN_RIGHT_SVG,
+        "spreadsheet_bg_color": ICON_SPREADSHEET_BG_COLOR_SVG,
+        "spreadsheet_text_color": ICON_SPREADSHEET_TEXT_COLOR_SVG,
+        "spreadsheet_quick_alias": ICON_SPREADSHEET_QUICK_ALIAS_SVG,
+    }
+
+    if name not in icons:
+        return ""
+
+    # Get the icons directory path (relative to this file)
+    icons_dir = os.path.join(os.path.dirname(__file__), "icons")
+    icon_path = os.path.join(icons_dir, f"ztools_{name}.svg")
+
+    # If the icon file doesn't exist, create it
+    if not os.path.exists(icon_path):
+        os.makedirs(icons_dir, exist_ok=True)
+        with open(icon_path, "w") as f:
+            f.write(icons[name])
+
+    return icon_path
+
+
+def save_icons_to_disk(directory: str):
+    """Save all icons as SVG files to a directory."""
+    import os
+
+    os.makedirs(directory, exist_ok=True)
+
+    icons = {
+        "ztools_workbench": ICON_WORKBENCH_SVG,
+        "ztools_datum_creator": ICON_DATUM_CREATOR_SVG,
+        "ztools_datum_manager": ICON_DATUM_MANAGER_SVG,
+        "ztools_plane_offset": ICON_PLANE_OFFSET_SVG,
+        "ztools_plane_midplane": ICON_PLANE_MIDPLANE_SVG,
+        "ztools_plane_3pt": ICON_PLANE_3PT_SVG,
+        "ztools_plane_normal": ICON_PLANE_NORMAL_SVG,
+        "ztools_plane_angled": ICON_PLANE_ANGLED_SVG,
+        "ztools_plane_tangent": ICON_PLANE_TANGENT_SVG,
+        "ztools_axis_2pt": ICON_AXIS_2PT_SVG,
+        "ztools_axis_edge": ICON_AXIS_EDGE_SVG,
+        "ztools_axis_cyl": ICON_AXIS_CYL_SVG,
+        "ztools_axis_intersect": ICON_AXIS_INTERSECT_SVG,
+        "ztools_point_vertex": ICON_POINT_VERTEX_SVG,
+        "ztools_point_xyz": ICON_POINT_XYZ_SVG,
+        "ztools_point_edge": ICON_POINT_EDGE_SVG,
+        "ztools_point_face": ICON_POINT_FACE_SVG,
+        "ztools_point_circle": ICON_POINT_CIRCLE_SVG,
+        "ztools_rotated_pattern": ICON_ROTATED_PATTERN_SVG,
+        "ztools_pocket_enhanced": ICON_POCKET_ENHANCED_SVG,
+        "ztools_pocket_flipped": ICON_POCKET_FLIPPED_SVG,
+        "ztools_assembly_linear_pattern": ICON_ASSEMBLY_LINEAR_PATTERN_SVG,
+        "ztools_assembly_polar_pattern": ICON_ASSEMBLY_POLAR_PATTERN_SVG,
+        "ztools_spreadsheet_bold": ICON_SPREADSHEET_BOLD_SVG,
+        "ztools_spreadsheet_italic": ICON_SPREADSHEET_ITALIC_SVG,
+        "ztools_spreadsheet_underline": ICON_SPREADSHEET_UNDERLINE_SVG,
+        "ztools_spreadsheet_align_left": ICON_SPREADSHEET_ALIGN_LEFT_SVG,
+        "ztools_spreadsheet_align_center": ICON_SPREADSHEET_ALIGN_CENTER_SVG,
+        "ztools_spreadsheet_align_right": ICON_SPREADSHEET_ALIGN_RIGHT_SVG,
+        "ztools_spreadsheet_bg_color": ICON_SPREADSHEET_BG_COLOR_SVG,
+        "ztools_spreadsheet_text_color": ICON_SPREADSHEET_TEXT_COLOR_SVG,
+        "ztools_spreadsheet_quick_alias": ICON_SPREADSHEET_QUICK_ALIAS_SVG,
+    }
+
+    for name, svg in icons.items():
+        filepath = os.path.join(directory, f"{name}.svg")
+        with open(filepath, "w") as f:
+            f.write(svg)
+        print(f"Saved: {filepath}")

reference/ztools/ztools/ztools/resources/icons/ztools_assembly_linear_pattern.svg

@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Direction arrow -->
+  <line x1="4" y1="16" x2="26" y2="16" stroke="#7f849c" stroke-width="1.5" stroke-dasharray="3,2"/>
+  <path d="M24 13 L28 16 L24 19" stroke="#7f849c" stroke-width="1.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+  <!-- Component 1 (original) -->
+  <rect x="4" y="10" width="6" height="6" rx="1" fill="#74c7ec" stroke="#89b4fa" stroke-width="1"/>
+  <circle cx="7" cy="13" r="1.5" fill="#94e2d5"/>
+  <!-- Component 2 -->
+  <rect x="13" y="10" width="6" height="6" rx="1" fill="#74c7ec" stroke="#89b4fa" stroke-width="1"/>
+  <circle cx="16" cy="13" r="1.5" fill="#94e2d5"/>
+  <!-- Component 3 -->
+  <rect x="22" y="10" width="6" height="6" rx="1" fill="#74c7ec" stroke="#89b4fa" stroke-width="1"/>
+  <circle cx="25" cy="13" r="1.5" fill="#94e2d5"/>
+  <!-- Count indicator -->
+  <text x="16" y="26" font-family="monospace" font-size="7" fill="#cdd6f4" text-anchor="middle">1-2-3</text>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_assembly_polar_pattern.svg

@@ -0,0 +1,27 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Center axis indicator -->
+  <circle cx="16" cy="16" r="2" fill="#fab387"/>
+  <circle cx="16" cy="16" r="10" fill="none" stroke="#7f849c" stroke-width="1" stroke-dasharray="3,2"/>
+  <!-- Rotation arrow -->
+  <path d="M23 8 A9 9 0 0 1 26 14" stroke="#a6e3a1" stroke-width="1.5" fill="none" stroke-linecap="round"/>
+  <path d="M25 11 L26 14 L23 14" stroke="#a6e3a1" stroke-width="1.5" fill="none" stroke-linejoin="round"/>
+  <!-- Component 1 (top) -->
+  <rect x="13" y="4" width="6" height="5" rx="1" fill="#74c7ec" stroke="#89b4fa" stroke-width="1"/>
+  <!-- Component 2 (right) -->
+  <g transform="translate(16,16) rotate(72) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="#cba6f7" stroke="#b4befe" stroke-width="1"/>
+  </g>
+  <!-- Component 3 (bottom-right) -->
+  <g transform="translate(16,16) rotate(144) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="#f5c2e7" stroke="#f2cdcd" stroke-width="1"/>
+  </g>
+  <!-- Component 4 (bottom-left) -->
+  <g transform="translate(16,16) rotate(216) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="#fab387" stroke="#eba0ac" stroke-width="1"/>
+  </g>
+  <!-- Component 5 (left) -->
+  <g transform="translate(16,16) rotate(288) translate(-16,-16)">
+    <rect x="13" y="4" width="6" height="5" rx="1" fill="#f9e2af" stroke="#fab387" stroke-width="1"/>
+  </g>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_axis_2pt.svg

@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Axis line -->
+  <line x1="6" y1="26" x2="26" y2="6" stroke="#f38ba8" stroke-width="2.5" stroke-linecap="round"/>
+  <!-- End points -->
+  <circle cx="6" cy="26" r="3" fill="#fab387"/>
+  <circle cx="26" cy="6" r="3" fill="#fab387"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_axis_cyl.svg

@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Cylinder -->
+  <ellipse cx="16" cy="8" rx="8" ry="3" fill="#585b70" stroke="#7f849c" stroke-width="1"/>
+  <path d="M8 8 L8 24" stroke="#7f849c" stroke-width="1"/>
+  <path d="M24 8 L24 24" stroke="#7f849c" stroke-width="1"/>
+  <ellipse cx="16" cy="24" rx="8" ry="3" fill="#585b70" stroke="#7f849c" stroke-width="1"/>
+  <!-- Center axis -->
+  <line x1="16" y1="4" x2="16" y2="28" stroke="#f38ba8" stroke-width="2.5" stroke-linecap="round"/>
+  <circle cx="16" cy="16" r="2" fill="#fab387"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_axis_edge.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Box edge representation -->
+  <path d="M8 24 L8 12 L20 8 L20 20 Z" fill="#585b70" stroke="#7f849c" stroke-width="1"/>
+  <!-- Selected edge highlighted -->
+  <line x1="8" y1="24" x2="8" y2="12" stroke="#f9e2af" stroke-width="3" stroke-linecap="round"/>
+  <!-- Resulting axis -->
+  <line x1="8" y1="28" x2="8" y2="4" stroke="#f38ba8" stroke-width="2" stroke-dasharray="4,2"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_axis_intersect.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- First plane -->
+  <path d="M4 12 L16 6 L28 12 L16 18 Z" fill="#89b4fa" fill-opacity="0.5" stroke="#74c7ec" stroke-width="1"/>
+  <!-- Second plane -->
+  <path d="M4 20 L16 14 L28 20 L16 26 Z" fill="#cba6f7" fill-opacity="0.5" stroke="#b4befe" stroke-width="1"/>
+  <!-- Intersection axis -->
+  <line x1="4" y1="16" x2="28" y2="16" stroke="#f38ba8" stroke-width="2.5" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_datum_creator.svg

@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Plane representation -->
+  <path d="M6 20 L16 8 L26 20 L16 26 Z" fill="#89b4fa" fill-opacity="0.6" stroke="#74c7ec" stroke-width="1.5"/>
+  <!-- Plus sign -->
+  <circle cx="24" cy="8" r="6" fill="#a6e3a1"/>
+  <path d="M24 5 L24 11 M21 8 L27 8" stroke="#1e1e2e" stroke-width="2" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_datum_manager.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Stacked planes -->
+  <path d="M4 18 L12 12 L20 18 L12 22 Z" fill="#89b4fa" fill-opacity="0.5" stroke="#74c7ec" stroke-width="1"/>
+  <path d="M4 14 L12 8 L20 14 L12 18 Z" fill="#cba6f7" fill-opacity="0.5" stroke="#b4befe" stroke-width="1"/>
+  <!-- List lines -->
+  <line x1="22" y1="10" x2="28" y2="10" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="22" y1="16" x2="28" y2="16" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="22" y1="22" x2="28" y2="22" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_plane_3pt.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Plane -->
+  <path d="M4 20 L16 8 L28 18 L14 28 Z" fill="#89b4fa" fill-opacity="0.6" stroke="#74c7ec" stroke-width="1.5"/>
+  <!-- Three points -->
+  <circle cx="8" cy="20" r="3" fill="#fab387"/>
+  <circle cx="16" cy="10" r="3" fill="#fab387"/>
+  <circle cx="24" cy="18" r="3" fill="#fab387"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_plane_angled.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Base plane -->
+  <path d="M4 22 L16 16 L28 22 L16 26 Z" fill="#7f849c" stroke="#9399b2" stroke-width="1"/>
+  <!-- Angled plane -->
+  <path d="M8 10 L20 6 L24 18 L12 22 Z" fill="#cba6f7" fill-opacity="0.7" stroke="#b4befe" stroke-width="1.5"/>
+  <!-- Angle arc -->
+  <path d="M14 20 Q18 18 18 14" stroke="#fab387" stroke-width="2" fill="none" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_plane_midplane.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Top plane -->
+  <path d="M4 10 L16 4 L28 10 L16 14 Z" fill="#7f849c" stroke="#9399b2" stroke-width="1"/>
+  <!-- Middle plane (result) -->
+  <path d="M4 16 L16 10 L28 16 L16 20 Z" fill="#a6e3a1" fill-opacity="0.7" stroke="#94e2d5" stroke-width="1.5"/>
+  <!-- Bottom plane -->
+  <path d="M4 22 L16 16 L28 22 L16 26 Z" fill="#7f849c" stroke="#9399b2" stroke-width="1"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_plane_normal.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Edge/curve -->
+  <path d="M6 26 Q16 6 26 16" stroke="#f9e2af" stroke-width="2.5" fill="none" stroke-linecap="round"/>
+  <!-- Plane perpendicular -->
+  <path d="M12 8 L20 12 L20 24 L12 20 Z" fill="#89b4fa" fill-opacity="0.7" stroke="#74c7ec" stroke-width="1.5"/>
+  <!-- Point on curve -->
+  <circle cx="16" cy="16" r="2.5" fill="#fab387"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_plane_offset.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Base plane -->
+  <path d="M4 22 L16 14 L28 22 L16 28 Z" fill="#7f849c" stroke="#9399b2" stroke-width="1"/>
+  <!-- Offset plane -->
+  <path d="M4 14 L16 6 L28 14 L16 20 Z" fill="#89b4fa" fill-opacity="0.7" stroke="#74c7ec" stroke-width="1.5"/>
+  <!-- Offset arrow -->
+  <path d="M16 24 L16 18" stroke="#fab387" stroke-width="2" stroke-linecap="round"/>
+  <path d="M14 20 L16 17 L18 20" stroke="#fab387" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_plane_tangent.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Cylinder outline -->
+  <ellipse cx="12" cy="16" rx="6" ry="10" fill="none" stroke="#f9e2af" stroke-width="2"/>
+  <!-- Tangent plane -->
+  <path d="M18 6 L28 10 L28 26 L18 22 Z" fill="#89b4fa" fill-opacity="0.7" stroke="#74c7ec" stroke-width="1.5"/>
+  <!-- Tangent point -->
+  <circle cx="18" cy="16" r="2.5" fill="#fab387"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_pocket_enhanced.svg

@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- 3D block with pocket cutout -->
+  <path d="M6 22 L6 10 L16 6 L26 10 L26 22 L16 26 Z" fill="#585b70" stroke="#7f849c" stroke-width="1"/>
+  <path d="M6 10 L16 14 L26 10" stroke="#7f849c" stroke-width="1" fill="none"/>
+  <path d="M16 14 L16 26" stroke="#7f849c" stroke-width="1"/>
+  <!-- Pocket depression -->
+  <path d="M10 12 L16 10 L22 12 L22 18 L16 20 L10 18 Z" fill="#1e1e2e" stroke="#cba6f7" stroke-width="1.5"/>
+  <!-- Down arrow indicating cut -->
+  <path d="M16 13 L16 17" stroke="#f38ba8" stroke-width="2" stroke-linecap="round"/>
+  <path d="M14 15 L16 18 L18 15" stroke="#f38ba8" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_pocket_flipped.svg

@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Outer material removed (dark) -->
+  <path d="M6 22 L6 10 L16 6 L26 10 L26 22 L16 26 Z" fill="#1e1e2e" stroke="#7f849c" stroke-width="1"/>
+  <path d="M6 10 L16 14 L26 10" stroke="#6c7086" stroke-width="1" fill="none"/>
+  <path d="M16 14 L16 26" stroke="#6c7086" stroke-width="1"/>
+  <!-- Inner remaining material (raised) -->
+  <path d="M10 20 L10 12 L16 10 L22 12 L22 20 L16 22 Z" fill="#585b70" stroke="#94e2d5" stroke-width="1.5"/>
+  <path d="M10 12 L16 14 L22 12" stroke="#7f849c" stroke-width="1" fill="none"/>
+  <path d="M16 14 L16 22" stroke="#7f849c" stroke-width="1"/>
+  <!-- Flip arrows -->
+  <path d="M4 16 L8 14 L8 18 Z" fill="#fab387"/>
+  <path d="M28 16 L24 14 L24 18 Z" fill="#fab387"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_point_circle.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Circle -->
+  <circle cx="16" cy="16" r="10" fill="none" stroke="#f9e2af" stroke-width="2.5"/>
+  <!-- Center point -->
+  <circle cx="16" cy="16" r="4" fill="#a6e3a1"/>
+  <circle cx="16" cy="16" r="2" fill="#94e2d5"/>
+  <!-- Radius line -->
+  <line x1="16" y1="16" x2="26" y2="16" stroke="#7f849c" stroke-width="1" stroke-dasharray="2,2"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_point_edge.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Edge/curve -->
+  <path d="M6 24 Q16 4 26 20" stroke="#f9e2af" stroke-width="2.5" fill="none" stroke-linecap="round"/>
+  <!-- Point on edge -->
+  <circle cx="14" cy="12" r="4" fill="#a6e3a1"/>
+  <!-- Parameter indicator -->
+  <text x="20" y="10" font-family="monospace" font-size="8" fill="#cdd6f4">t</text>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_point_face.svg

@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Face -->
+  <path d="M6 20 L16 10 L26 20 L16 26 Z" fill="#89b4fa" fill-opacity="0.6" stroke="#74c7ec" stroke-width="1.5"/>
+  <!-- Center point -->
+  <circle cx="16" cy="19" r="4" fill="#a6e3a1"/>
+  <circle cx="16" cy="19" r="2" fill="#94e2d5"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_point_vertex.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Wireframe box corner -->
+  <path d="M10 20 L10 10 L20 6" stroke="#7f849c" stroke-width="1.5" fill="none"/>
+  <path d="M10 20 L20 16 L20 6" stroke="#7f849c" stroke-width="1.5" fill="none"/>
+  <path d="M10 20 L4 24" stroke="#7f849c" stroke-width="1.5" fill="none"/>
+  <!-- Vertex point -->
+  <circle cx="10" cy="20" r="4" fill="#a6e3a1"/>
+  <circle cx="10" cy="20" r="2" fill="#94e2d5"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_point_xyz.svg

@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Coordinate axes -->
+  <line x1="6" y1="24" x2="26" y2="24" stroke="#f38ba8" stroke-width="1.5"/>
+  <line x1="6" y1="24" x2="6" y2="6" stroke="#a6e3a1" stroke-width="1.5"/>
+  <line x1="6" y1="24" x2="16" y2="28" stroke="#89b4fa" stroke-width="1.5"/>
+  <!-- Point -->
+  <circle cx="18" cy="12" r="4" fill="#fab387"/>
+  <!-- Projection lines -->
+  <line x1="18" y1="12" x2="18" y2="24" stroke="#7f849c" stroke-width="1" stroke-dasharray="2,2"/>
+  <line x1="18" y1="12" x2="6" y2="12" stroke="#7f849c" stroke-width="1" stroke-dasharray="2,2"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_rotated_pattern.svg

@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Direction line -->
+  <line x1="4" y1="24" x2="28" y2="24" stroke="#7f849c" stroke-width="1" stroke-dasharray="3,2"/>
+  <!-- First cube (original) -->
+  <rect x="4" y="16" width="6" height="6" fill="#89b4fa" stroke="#74c7ec" stroke-width="1"/>
+  <!-- Second cube (rotated 15deg) -->
+  <g transform="translate(14,19) rotate(-15)">
+    <rect x="-3" y="-3" width="6" height="6" fill="#cba6f7" stroke="#b4befe" stroke-width="1"/>
+  </g>
+  <!-- Third cube (rotated 30deg) -->
+  <g transform="translate(24,19) rotate(-30)">
+    <rect x="-3" y="-3" width="6" height="6" fill="#f5c2e7" stroke="#f2cdcd" stroke-width="1"/>
+  </g>
+  <!-- Rotation arrow -->
+  <path d="M24 8 A5 5 0 0 1 19 13" stroke="#fab387" stroke-width="1.5" fill="none"/>
+  <path d="M18 11 L19 13 L21 12" stroke="#fab387" stroke-width="1.5" fill="none" stroke-linejoin="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_align_center.svg

@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <line x1="6" y1="9" x2="26" y2="9" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="10" y1="14" x2="22" y2="14" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="8" y1="19" x2="24" y2="19" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="12" y1="24" x2="20" y2="24" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_align_left.svg

@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <line x1="6" y1="9" x2="26" y2="9" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="6" y1="14" x2="20" y2="14" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="6" y1="19" x2="24" y2="19" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="6" y1="24" x2="16" y2="24" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_align_right.svg

@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <line x1="6" y1="9" x2="26" y2="9" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="12" y1="14" x2="26" y2="14" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="8" y1="19" x2="26" y2="19" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="16" y1="24" x2="26" y2="24" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_bg_color.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Paint bucket -->
+  <path d="M10 12 L16 6 L22 12 L22 20 C22 22 20 24 16 24 C12 24 10 22 10 20 Z" fill="#f9e2af" stroke="#fab387" stroke-width="1.5"/>
+  <!-- Handle -->
+  <path d="M16 6 L16 3" stroke="#7f849c" stroke-width="2" stroke-linecap="round"/>
+  <!-- Paint drip -->
+  <ellipse cx="25" cy="22" rx="2" ry="3" fill="#f9e2af"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_bold.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <text x="16" y="23" font-family="sans-serif" font-size="18" font-weight="bold" fill="#cdd6f4" text-anchor="middle">B</text>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_italic.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <text x="16" y="23" font-family="serif" font-size="18" font-style="italic" fill="#cdd6f4" text-anchor="middle">I</text>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_quick_alias.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Tag shape -->
+  <path d="M6 10 L18 10 L24 16 L18 22 L6 22 Z" fill="#94e2d5" stroke="#a6e3a1" stroke-width="1.5"/>
+  <!-- Tag hole -->
+  <circle cx="10" cy="16" r="2" fill="#313244"/>
+  <!-- Equals sign (alias) -->
+  <line x1="20" y1="12" x2="26" y2="12" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+  <line x1="20" y1="17" x2="26" y2="17" stroke="#cdd6f4" stroke-width="2" stroke-linecap="round"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_text_color.svg

@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Letter A -->
+  <text x="16" y="20" font-family="sans-serif" font-size="16" font-weight="bold" fill="#cdd6f4" text-anchor="middle">A</text>
+  <!-- Color bar -->
+  <rect x="8" y="24" width="16" height="3" rx="1" fill="#f38ba8"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_spreadsheet_underline.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <text x="16" y="20" font-family="sans-serif" font-size="16" fill="#cdd6f4" text-anchor="middle">U</text>
+  <line x1="10" y1="24" x2="22" y2="24" stroke="#cdd6f4" stroke-width="2"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_theme_apply.svg

@@ -0,0 +1,15 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Paint palette -->
+  <ellipse cx="14" cy="18" rx="10" ry="8" fill="#1e1e2e" stroke="#cba6f7" stroke-width="1.5"/>
+  <!-- Color dots on palette -->
+  <circle cx="9" cy="16" r="2" fill="#f38ba8"/>
+  <circle cx="14" cy="13" r="2" fill="#f9e2af"/>
+  <circle cx="19" cy="16" r="2" fill="#a6e3a1"/>
+  <circle cx="14" cy="21" r="2" fill="#89b4fa"/>
+  <!-- Thumb hole -->
+  <ellipse cx="10" cy="20" rx="2" ry="1.5" fill="#313244"/>
+  <!-- Check mark -->
+  <circle cx="24" cy="8" r="5" fill="#a6e3a1"/>
+  <path d="M21.5 8 L23 9.5 L26.5 6" stroke="#11111b" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_theme_export.svg

@@ -0,0 +1,15 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Paint palette -->
+  <ellipse cx="14" cy="16" rx="10" ry="8" fill="#1e1e2e" stroke="#cba6f7" stroke-width="1.5"/>
+  <!-- Color dots -->
+  <circle cx="9" cy="14" r="2" fill="#f38ba8"/>
+  <circle cx="14" cy="11" r="2" fill="#f9e2af"/>
+  <circle cx="19" cy="14" r="2" fill="#a6e3a1"/>
+  <circle cx="14" cy="19" r="2" fill="#89b4fa"/>
+  <!-- Thumb hole -->
+  <ellipse cx="10" cy="18" rx="2" ry="1.5" fill="#313244"/>
+  <!-- Download arrow -->
+  <rect x="21" y="20" width="8" height="8" rx="2" fill="#fab387"/>
+  <path d="M25 22 L25 26 M23 24.5 L25 26.5 L27 24.5" stroke="#11111b" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_theme_remove.svg

@@ -0,0 +1,15 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Paint palette (dimmed) -->
+  <ellipse cx="14" cy="18" rx="10" ry="8" fill="#1e1e2e" stroke="#6c7086" stroke-width="1.5"/>
+  <!-- Color dots (dimmed) -->
+  <circle cx="9" cy="16" r="2" fill="#7f849c"/>
+  <circle cx="14" cy="13" r="2" fill="#7f849c"/>
+  <circle cx="19" cy="16" r="2" fill="#7f849c"/>
+  <circle cx="14" cy="21" r="2" fill="#7f849c"/>
+  <!-- Thumb hole -->
+  <ellipse cx="10" cy="20" rx="2" ry="1.5" fill="#313244"/>
+  <!-- X mark -->
+  <circle cx="24" cy="8" r="5" fill="#f38ba8"/>
+  <path d="M22 6 L26 10 M26 6 L22 10" stroke="#11111b" stroke-width="1.5" stroke-linecap="round" fill="none"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_theme_toggle.svg

@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <!-- Paint palette -->
+  <ellipse cx="14" cy="18" rx="10" ry="8" fill="#1e1e2e" stroke="#cba6f7" stroke-width="1.5"/>
+  <!-- Color dots -->
+  <circle cx="9" cy="16" r="2" fill="#f38ba8"/>
+  <circle cx="14" cy="13" r="2" fill="#f9e2af"/>
+  <circle cx="19" cy="16" r="2" fill="#a6e3a1"/>
+  <circle cx="14" cy="21" r="2" fill="#89b4fa"/>
+  <!-- Thumb hole -->
+  <ellipse cx="10" cy="20" rx="2" ry="1.5" fill="#313244"/>
+  <!-- Toggle arrows -->
+  <path d="M22 5 A4 4 0 0 1 26 9" stroke="#94e2d5" stroke-width="1.5" stroke-linecap="round" fill="none"/>
+  <path d="M25 5 L22 5 L22 8" stroke="#94e2d5" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+  <path d="M28 11 A4 4 0 0 1 24 7" stroke="#94e2d5" stroke-width="1.5" stroke-linecap="round" fill="none"/>
+  <path d="M25 11 L28 11 L28 8" stroke="#94e2d5" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+</svg>

reference/ztools/ztools/ztools/resources/icons/ztools_workbench.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect x="2" y="2" width="28" height="28" rx="4" fill="#313244"/>
+  <path d="M8 10 L24 10 L10 22 L24 22" stroke="#cba6f7" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" fill="none"/>
+  <circle cx="24" cy="10" r="2" fill="#94e2d5"/>
+</svg>