Fix mesh icon names of 3 SVG files

src/Mod/Mesh/Gui/Command.cpp

@@ -1017,7 +1017,7 @@ CmdMeshTrimByPlane::CmdMeshTrimByPlane()
     sMenuText     = QT_TR_NOOP("Trim mesh with a plane");
     sToolTipText  = QT_TR_NOOP("Trims a mesh with a plane");
     sStatusTip    = QT_TR_NOOP("Trims a mesh with a plane");
-    sPixmap       = "Mesh_Trim_by_Plane";
+    sPixmap       = "Mesh_TrimByPlane";
 }
 
 void CmdMeshTrimByPlane::activated(int)
@@ -1046,7 +1046,7 @@ CmdMeshSectionByPlane::CmdMeshSectionByPlane()
     sMenuText     = QT_TR_NOOP("Create section from mesh and plane");
     sToolTipText  = QT_TR_NOOP("Section from mesh and plane");
     sStatusTip    = QT_TR_NOOP("Section from mesh and plane");
-    sPixmap       = "Mesh_Section_by_Plane";
+    sPixmap       = "Mesh_SectionByPlane";
 }
 
 void CmdMeshSectionByPlane::activated(int)
@@ -1753,7 +1753,7 @@ CmdMeshSegmentationBestFit::CmdMeshSegmentationBestFit()
     sToolTipText  = QT_TR_NOOP("Create mesh segments from best-fit surfaces");
     sWhatsThis    = "Mesh_SegmentationBestFit";
     sStatusTip    = QT_TR_NOOP("Create mesh segments from best-fit surfaces");
-    sPixmap       = "Mesh_Segmentation_Best_Fit";
+    sPixmap       = "Mesh_SegmentationBestFit";
 }
 
 void CmdMeshSegmentationBestFit::activated(int)

src/Mod/Mesh/Gui/Resources/Mesh.qrc

@@ -25,14 +25,14 @@
         <file>icons/Mesh_RemoveCompByHand.svg</file>
         <file>icons/Mesh_RemoveComponents.svg</file>
         <file>icons/Mesh_Scale.svg</file>
-        <file>icons/Mesh_Section_by_Plane.svg</file>
-        <file>icons/Mesh_Segmentation_Best_Fit.svg</file>
+        <file>icons/Mesh_SectionByPlane.svg</file>
+        <file>icons/Mesh_SegmentationBestFit.svg</file>
         <file>icons/Mesh_Segmentation.svg</file>
         <file>icons/Mesh_Smoothing.svg</file>
         <file>icons/Mesh_SplitComponents.svg</file>
         <file>icons/Mesh_Tree.svg</file>
         <file>icons/Mesh_Tree_Curvature_Plot.svg</file>
-        <file>icons/Mesh_Trim_by_Plane.svg</file>
+        <file>icons/Mesh_TrimByPlane.svg</file>
         <file>icons/Mesh_Union.svg</file>
         <file>icons/Mesh_VertexCurvature.svg</file>
         <file>icons/MeshWorkbench.svg</file>