diff --git a/MatterControlLib/ApplicationView/SceneOperations.cs b/MatterControlLib/ApplicationView/SceneOperations.cs
index c082bc87b..721492179 100644
--- a/MatterControlLib/ApplicationView/SceneOperations.cs
+++ b/MatterControlLib/ApplicationView/SceneOperations.cs
@@ -882,6 +882,9 @@ namespace MatterHackers.MatterControl
 				Icons.Add(typeof(SelectionGroupObject3D), groupIconSource);
 			}
 
+			// register legacy types so they still show, they don't have ui to create so they don't have icons set dynamically
+			Icons.Add(typeof(AlignObject3D), (theme) => StaticData.Instance.LoadIcon("align_left_dark.png", 16, 16).SetToColor(theme.TextColor).SetPreMultiply());
+
 			// image operations
 			PrimaryOperations.Add(typeof(ImageObject3D), new List<SceneOperation> { SceneOperations.ById("ImageConverter"), SceneOperations.ById("ImageToPath"), });
 
@@ -919,7 +922,6 @@ namespace MatterHackers.MatterControl
 			PrimaryOperations.Add(typeof(Object3D), new List<SceneOperation> { SceneOperations.ById("Scale") });
 
 			Icons.Add(typeof(ImageObject3D), (theme) => StaticData.Instance.LoadIcon("image_converter.png", 16, 16).SetToColor(theme.TextColor).SetPreMultiply());
-			// Icons.Add(typeof(CubeObject3D), (theme) => StaticData.Instance.LoadIcon("image_converter.png", 16, 16).SetToColor(theme.TextColor).SetPreMultiply());
 		}
 
 		private static SceneOperation CombineOperation()
diff --git a/MatterControlLib/Library/ContentProviders/MeshContentProvider.cs b/MatterControlLib/Library/ContentProviders/MeshContentProvider.cs
index 03aca8c98..d5951cb03 100644
--- a/MatterControlLib/Library/ContentProviders/MeshContentProvider.cs
+++ b/MatterControlLib/Library/ContentProviders/MeshContentProvider.cs
@@ -176,9 +176,9 @@ namespace MatterHackers.MatterControl
 				// TODO: Wire up limits for thumbnail generation. If content is too big, return null allowing the thumbnail to fall back to content default
 				object3D = await contentModel.CreateContent();
 			}
-			else if (libraryItem is ILibraryObject3D)
+			else if (libraryItem is ILibraryObject3D libraryObject3D)
 			{
-				object3D = await (libraryItem as ILibraryObject3D)?.GetObject3D(null);
+				object3D = await libraryObject3D.GetObject3D(null);
 			}
 
 			if (object3D == null)
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 8dd82c825..80691d427 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 8dd82c825266791e6d51461bdf4de83df238dc6e
+Subproject commit 80691d427aed19ef7578efa573cf3f0fd08030ee