Using HideFlags.HideAndDontSave on Texture2D objects

I learned that is how we can tell Unity that Texture2D objects that were loaded during "game time" need to be retained after "game time" ends

Author: StanleyGoldman

src/UnityExtension/Assets/Editor/GitHub.Unity/Misc/Utility.cs

@@ -16,12 +16,25 @@ public static Texture2D GetIcon(string filename, string filename2x = "")
                 filename = filename2x;
             }
 
+            Texture2D texture2D = null;
+
             var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("GitHub.Unity.IconsAndLogos." + filename);
             if (stream != null)
-                return stream.ToTexture2D();
+            {
+                texture2D = stream.ToTexture2D();
+            }
+            else
+            {
+                var iconPath = EntryPoint.Environment.ExtensionInstallPath.Combine("IconsAndLogos", filename).ToString(SlashMode.Forward);
+                texture2D = AssetDatabase.LoadAssetAtPath<Texture2D>(iconPath);
+            }
+
+            if (texture2D != null)
+            {
+                texture2D.hideFlags = HideFlags.HideAndDontSave;
+            }
 
-            var iconPath = EntryPoint.Environment.ExtensionInstallPath.Combine("IconsAndLogos", filename).ToString(SlashMode.Forward);
-            return AssetDatabase.LoadAssetAtPath<Texture2D>(iconPath);
+            return texture2D;
         }
 
         public static Texture2D GetTextureFromColor(Color color)

src/UnityExtension/Assets/Editor/GitHub.Unity/UI/Window.cs

@@ -40,6 +40,8 @@ class Window : BaseWindow
         [SerializeField] private CacheUpdateEvent lastCurrentBranchAndRemoteChangedEvent;
         [NonSerialized] private bool currentBranchAndRemoteHasUpdate;
 
+        [NonSerialized] private Texture2D smallLogo;
+
         [MenuItem(LaunchMenu)]
         public static void Window_GitHub()
         {
@@ -102,7 +104,11 @@ public override void OnEnable()
             Selection.activeObject = this;
 #endif
             // Set window title
-            titleContent = new GUIContent(Title, Styles.SmallLogo);
+            if (smallLogo == null)
+            {
+                smallLogo = Styles.SmallLogo;
+                titleContent = new GUIContent(Title, smallLogo);
+            }
 
             if (Repository != null)
                 Repository.CheckCurrentBranchAndRemoteChangedEvent(lastCurrentBranchAndRemoteChangedEvent);