diff --git a/PartPreviewWindow/ViewControls3D.cs b/PartPreviewWindow/ViewControls3D.cs
index db49a6e73..9827c5485 100644
--- a/PartPreviewWindow/ViewControls3D.cs
+++ b/PartPreviewWindow/ViewControls3D.cs
@@ -368,7 +368,6 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 			{
 				HAnchor = HAnchor.Fit,
 				VAnchor = VAnchor.Fit,
-				BackgroundColor = Color.White
 			};
 
 			return new PopupMenuButton(buttonView, theme)