diff -r 9f509bc10a63 -r 508a673c87ac src/Pure/GUI/tree_view.scala
--- a/src/Pure/GUI/tree_view.scala	Tue Feb 11 23:31:12 2025 +0100
+++ b/src/Pure/GUI/tree_view.scala	Wed Feb 12 00:40:57 2025 +0100
@@ -8,7 +8,7 @@
 
 import javax.swing.JTree
 import javax.swing.tree.{MutableTreeNode, DefaultMutableTreeNode, DefaultTreeModel,
-  TreeSelectionModel, TreeCellRenderer, DefaultTreeCellRenderer}
+  TreeSelectionModel, DefaultTreeCellRenderer}
 
 
 object Tree_View {