diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index f0ad78eda..29b6348ac 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit f0ad78edaad8ff552419ecd16dbab9c8f285aade
+Subproject commit 29b6348acd4a4779a52bc193009343e637efff21
diff --git a/Utilities/InspectForm.cs b/Utilities/InspectForm.cs
index b0eb3f204..2e760ad22 100644
--- a/Utilities/InspectForm.cs
+++ b/Utilities/InspectForm.cs
@@ -27,12 +27,22 @@ namespace MatterHackers.MatterControl
 			: this(inspectedSystemWindow)
 		{
 			this.scene = scene;
-
+			this.scene.ChildrenModified += Scene_ChildrenModified;
 			sceneTreeView.SuspendLayout();
 			this.AddTree(scene, null, "Scene");
 			sceneTreeView.ResumeLayout();
 		}
 
+		private void Scene_ChildrenModified(object sender, EventArgs e)
+		{
+			sceneTreeView.SuspendLayout();
+			sceneTreeView.Nodes.Clear();
+			sceneTreeNodes.Clear();
+
+			this.AddTree(scene, null, "Scene");
+			sceneTreeView.ResumeLayout();
+		}
+
 		public InspectForm(GuiWidget inspectedSystemWindow)
 		{
 			InitializeComponent();
@@ -238,6 +248,8 @@ namespace MatterHackers.MatterControl
 				parentNode.Nodes.Add(node);
 			}
 
+			node.Expand();
+
 			return node;
 		}
 
@@ -249,15 +261,21 @@ namespace MatterHackers.MatterControl
 			};
 			sceneTreeNodes.Add(item, node);
 
+
 			if (parentNode == null)
 			{
 				sceneTreeView.Nodes.Add(node);
+				node.Expand();
+
 			}
 			else
 			{
 				parentNode.Nodes.Add(node);
+				parentNode.Expand();
 			}
 
+
+
 			return node;
 		}
 
@@ -389,6 +407,11 @@ namespace MatterHackers.MatterControl
 			inspectedSystemWindow.AfterDraw -= systemWindow_AfterDraw;
 			inspectedSystemWindow.MouseMove -= systemWindow_MouseMove;
 
+			if (scene != null)
+			{
+				scene.ChildrenModified -= Scene_ChildrenModified;
+			}
+
 			if (mouseUpWidget != null)
 			{
 				mouseUpWidget.MouseUp -= inspectedWidget_MouseUp;
@@ -433,20 +456,19 @@ namespace MatterHackers.MatterControl
 		private void SceneTreeView_DrawNode(object sender, DrawTreeNodeEventArgs e)
 		{
 			var node = e.Node;
-
 			if (node.IsVisible)
 			{
 				var item = node.Tag as IObject3D;
 				Brush brush;
-				//if (node == activeTreeNode)
-				//{
-				//	brush = SystemBrushes.Highlight;
-				//}
-				//else if (aggAncestryTree.Contains(item))
-				//{
-				//	brush = Brushes.LightBlue;
-				//}
-				//else
+
+				if (scene.HasSelection 
+					&& (scene.SelectedItem == item
+					|| scene.SelectedItem.Children.Contains(item)))
+				{
+
+					brush = SystemBrushes.Highlight;
+				}
+				else
 				{
 					brush = Brushes.Transparent;
 				}
@@ -459,7 +481,6 @@ namespace MatterHackers.MatterControl
 					node == activeTreeNode ? boldFont : node.NodeFont,
 					new Point(node.Bounds.Left, node.Bounds.Top),
 					SystemColors.ControlText,
-					//item.ActuallyVisibleOnScreen() ? SystemColors.ControlText : SystemColors.GrayText,
 					Color.Transparent);
 			}
 		}