From eeb02d4db1aa31cb7c49bf45a52bef4f63b8c85f Mon Sep 17 00:00:00 2001
From: Paddle <PaddleStroke@users.noreply.github.com>
Date: Tue, 30 May 2023 16:56:41 +0200
Subject: [PATCH] Core: Tree: Remove useless "Application" root item.

---
 src/Gui/Tree.cpp | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/Gui/Tree.cpp b/src/Gui/Tree.cpp
index 41bdcdebc0..20d2bf89e6 100644
--- a/src/Gui/Tree.cpp
+++ b/src/Gui/Tree.cpp
@@ -400,7 +400,6 @@ TreeWidget::TreeWidget(const char* name, QWidget* parent)
     this->setAcceptDrops(true);
     this->setDropIndicatorShown(false);
     this->setDragDropMode(QTreeWidget::InternalMove);
-    this->setRootIsDecorated(false);
     this->setColumnCount(2);
     this->setItemDelegate(new TreeWidgetEditDelegate(this));
 
@@ -487,8 +486,7 @@ TreeWidget::TreeWidget(const char* name, QWidget* parent)
     });
 
     // Add the first main label
-    this->rootItem = new QTreeWidgetItem(this);
-    this->rootItem->setFlags(Qt::ItemIsEnabled);
+    this->rootItem = invisibleRootItem();
     this->expandItem(this->rootItem);
     this->setSelectionMode(QAbstractItemView::ExtendedSelection);
 
@@ -2769,7 +2767,6 @@ void TreeWidget::setupText()
 {
     this->headerItem()->setText(0, tr("Labels & Attributes"));
     this->headerItem()->setText(1, tr("Description"));
-    this->rootItem->setText(0, tr("Application"));
 
     this->showHiddenAction->setText(tr("Show items hidden in tree view"));
     this->showHiddenAction->setStatusTip(tr("Show items that are marked as 'hidden' in the tree view"));