diff --git a/MatterControl.MeshOperations/OperationSourceContainerObject3D.cs b/MatterControl.MeshOperations/OperationSourceContainerObject3D.cs
index 779cf8731..14783a8d5 100644
--- a/MatterControl.MeshOperations/OperationSourceContainerObject3D.cs
+++ b/MatterControl.MeshOperations/OperationSourceContainerObject3D.cs
@@ -282,7 +282,7 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 			}
 
 			// and select this
-			var rootItem = this.Ancestors().Where(i => scene.Children.Contains(i)).FirstOrDefault();
+			var rootItem = this.Parents().Where(i => scene.Children.Contains(i)).FirstOrDefault();
 			if (rootItem != null)
 			{
 				scene.SelectedItem = rootItem;
diff --git a/MatterControlLib/DesignTools/EditorTools/LithophanePlugin.cs b/MatterControlLib/DesignTools/EditorTools/LithophanePlugin.cs
index e2f0f7fe2..27c99addb 100644
--- a/MatterControlLib/DesignTools/EditorTools/LithophanePlugin.cs
+++ b/MatterControlLib/DesignTools/EditorTools/LithophanePlugin.cs
@@ -59,7 +59,7 @@ namespace MatterHackers.MatterControl.Plugins.Lithophane
 
 				if (scene != null)
 				{
-					var topParent = wrapper.Ancestors().LastOrDefault(i => i.Parent != null);
+					var topParent = wrapper.Parents().LastOrDefault(i => i.Parent != null);
 					UiThread.RunOnIdle(() =>
 					{
 						scene.SelectedItem = topParent ?? wrapper;
diff --git a/MatterControlLib/DesignTools/Operations/RotateObject3D_2.cs b/MatterControlLib/DesignTools/Operations/RotateObject3D_2.cs
index c39330b3d..298b764ec 100644
--- a/MatterControlLib/DesignTools/Operations/RotateObject3D_2.cs
+++ b/MatterControlLib/DesignTools/Operations/RotateObject3D_2.cs
@@ -140,6 +140,7 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 
 		public override Task Rebuild()
 		{
+			this.DebugDepth("Rebuild");
 			using (RebuildLock())
 			{
 				// set the matrix for the inner object
diff --git a/MatterControlLib/DesignTools/Operations/TransformWrapperObject3D.cs b/MatterControlLib/DesignTools/Operations/TransformWrapperObject3D.cs
index cd0fd9b75..fc149fa08 100644
--- a/MatterControlLib/DesignTools/Operations/TransformWrapperObject3D.cs
+++ b/MatterControlLib/DesignTools/Operations/TransformWrapperObject3D.cs
@@ -173,7 +173,7 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 			parentLock?.Dispose();
 
 			// and select this
-			var rootItem = this.Ancestors().Where(i => scene.Children.Contains(i)).FirstOrDefault();
+			var rootItem = this.Parents().Where(i => scene.Children.Contains(i)).FirstOrDefault();
 			if (rootItem != null)
 			{
 				scene.SelectedItem = rootItem;
diff --git a/MatterControlLib/Library/Providers/GitHub/GitHubContainer.cs b/MatterControlLib/Library/Providers/GitHub/GitHubContainer.cs
index 723b6d2c9..811f7faac 100644
--- a/MatterControlLib/Library/Providers/GitHub/GitHubContainer.cs
+++ b/MatterControlLib/Library/Providers/GitHub/GitHubContainer.cs
@@ -1,5 +1,6 @@
 /*
 Copyright (c) 2019, John Lewin
+Copyright (c) 2021, Lars Brubaker
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -86,6 +87,11 @@ namespace MatterHackers.MatterControl.Library
 				{
 					lock (locker)
 					{
+						if (content.Contains("rate limit exceeded"))
+						{
+							StatusMessage = content;
+							return;
+						}
 						ParseJson(content);
 					}
 				},
@@ -167,9 +173,10 @@ namespace MatterHackers.MatterControl.Library
 				}
 
 				// check the global cache if any
-				var repositoryImage = CheckForImage(item.ID, LoadRepositoryImageUrlCache());
+				var repositoryImage = CheckRepositoryForImage(item.ID, LoadRepositoryImageUrlCache());
 				if (repositoryImage != null)
 				{
+					repositoryImage.SetRecieveBlender(new BlenderPreMultBGRA());
 					return Task.FromResult<ImageBuffer>(repositoryImage);
 				}
 			}
@@ -194,6 +201,23 @@ namespace MatterHackers.MatterControl.Library
 			return null;
 		}
 
+		private ImageBuffer CheckRepositoryForImage(string id, List<(string name, string url)> cache)
+		{
+			foreach (var imageUrl in cache)
+			{
+				if (imageUrl.name.Contains(Path.GetFileNameWithoutExtension(id)))
+				{
+					// download the image and cache it
+					var image = new ImageBuffer(LibraryConfig.DefaultItemIcon);
+					image.SetRecieveBlender(new BlenderPreMultBGRA());
+					WebCache.RetrieveImageAsync(image, imageUrl.url, false);
+					return image;
+				}
+			}
+
+			return null;
+		}
+
 		private async Task LoadFolderImageUrlCache()
 		{
 			if (folderImageUrlCache.Count == 0)
@@ -279,6 +303,11 @@ namespace MatterHackers.MatterControl.Library
 			request.Headers.Add("Upgrade-Insecure-Requests", "1");
 			request.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36");
 			request.Headers.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9");
+			var token = UserSettings.Instance.get("GitHubPat");
+			if (string.IsNullOrEmpty(token))
+			{
+				request.Headers.Add("Authorization", $"token {token}");
+			}
 			request.Headers.Add("Sec-Fetch-Site", "none");
 			request.Headers.Add("Sec-Fetch-Mode", "navigate");
 			request.Headers.Add("Sec-Fetch-User", "?1");
diff --git a/MatterControlLib/PartPreviewWindow/View3D/Object3DControlsLayer.cs b/MatterControlLib/PartPreviewWindow/View3D/Object3DControlsLayer.cs
index 1814ad7b5..b8425fcc9 100644
--- a/MatterControlLib/PartPreviewWindow/View3D/Object3DControlsLayer.cs
+++ b/MatterControlLib/PartPreviewWindow/View3D/Object3DControlsLayer.cs
@@ -760,7 +760,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 
 				bool isSelected = selectedItem != null
 					&& (item == selectedItem
-						|| item.Ancestors().Any(p => p == selectedItem));
+						|| item.Parents().Any(p => p == selectedItem));
 
 				// Invoke all item Drawables
 				foreach (var drawable in itemDrawables.Where(d => d.DrawStage != DrawStage.Last && d.Enabled))
diff --git a/MatterControlLib/SettingsManagement/ApplicationSettingsPage.cs b/MatterControlLib/SettingsManagement/ApplicationSettingsPage.cs
index 2ed7dac05..cde67737b 100644
--- a/MatterControlLib/SettingsManagement/ApplicationSettingsPage.cs
+++ b/MatterControlLib/SettingsManagement/ApplicationSettingsPage.cs
@@ -447,6 +447,28 @@ namespace MatterHackers.MatterControl
 				advancedPanel);
 #endif
 
+			var gitHubPat = UserSettings.Instance.get("GitHubPat");
+			if (gitHubPat == null)
+			{
+				gitHubPat = "";
+			}
+			var accessToken = new MHTextEditWidget(gitHubPat, theme, pixelWidth: 300, messageWhenEmptyAndNotSelected: "Enter a GitHub Person Access Token".Localize())
+			{
+				HAnchor = HAnchor.Stretch,
+				Margin = new BorderDouble(5),
+				Name = "GitHubPat Edit Field"
+			};
+			accessToken.ActualTextEditWidget.EnterPressed += (s, e) =>
+			{
+				UserSettings.Instance.set("GitHubPat", accessToken.ActualTextEditWidget.Text);
+			};
+			this.AddSettingsRow(
+				new SettingsItem(
+					"GitHub Personal Access Token".Localize(),
+					accessToken,
+					theme),
+				advancedPanel);
+
 			advancedPanel.Children<SettingsItem>().First().Border = new BorderDouble(0, 1);
 		}
 
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 6f9957b67..0f47e2dc3 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 6f9957b6744efcc732700d092674572040a15809
+Subproject commit 0f47e2dc3853ad5b2bf4775d37a3e4e1ed44a7c6