diff --git a/Scenes/MainControlPanel.cs b/Scenes/MainControlPanel.cs
index 87679c2..da1ba9a 100644
--- a/Scenes/MainControlPanel.cs
+++ b/Scenes/MainControlPanel.cs
@@ -67,7 +67,7 @@ public partial class MainControlPanel : HBoxContainer
 			sRoot.SetMeta("isoExp", h.Dump());
 			foreach (var group in h.Compounds.GroupBy(x => x.Expression))
 			{
-				TreeItem t = Compounds.CreateItem(root);
+				TreeItem t = Compounds.CreateItem(sRoot);
 				t.SetText(0, group.Key);
 				t.SetSelectable(0, false);
 				int j = 1;
diff --git a/Scenes/VirtualChemistryDemo.cs b/Scenes/VirtualChemistryDemo.cs
index 01284b3..2567b5d 100755
--- a/Scenes/VirtualChemistryDemo.cs
+++ b/Scenes/VirtualChemistryDemo.cs
@@ -7,10 +7,7 @@ public partial class VirtualChemistryDemo : Node2D
 	public Bottle SelectedBottle { get; set; }
 	private StringLoader ExpressionLoader { get; set; }
 
-	public void PopupStringLoader()
-	{
-		ExpressionLoader.Visible = true;
-	}
+	public void PopupStringLoader() => ExpressionLoader.Visible = true;
 
 	// Called when the node enters the scene tree for the first time.
 	public override void _Ready()
@@ -22,8 +19,4 @@ public partial class VirtualChemistryDemo : Node2D
 		GlobalScene.Demo = this;
 	}
 
-	// Called every frame. 'delta' is the elapsed time since the previous frame.
-	public override void _Process(double delta)
-	{
-	}
 }