private static void ProjectWindowItemOnGUI(string guid, Rect rect)
 {
     if (!SingletonAssetCache.TryGetEntry(guid, out var metadata) ||
         metadata.SingletonAssetAttribute == null)
     {
         return;
     }
     if (rect.height > EditorGUIUtility.singleLineHeight)
     {
         DrawProjectGridItem(rect, metadata);
     }
     else
     {
         DrawProjectItem(rect, AssetDatabase.GUIDToAssetPath(guid), metadata);
     }
 }
        private static void OnPostHeaderGUI(Editor editor)
        {
            if (editor.targets.Length > 1 ||
                !EditorUtility.IsPersistent(editor.target) ||
                !SingletonAssetCache.TryGetEntry(editor.serializedObject.targetObject, out var metadata) ||
                metadata.SingletonAssetAttribute == null)
            {
                return;
            }

            var resPath        = metadata.ResourcesPath;
            var hasCorrectPath = metadata.IsInLoadablePath;

            using (new GUILayout.HorizontalScope())
            {
                var iconContent = new GUIContent(GetGuiContent(hasCorrectPath, resPath));
                iconContent.text = "Singleton Asset";
                using (new EditorGUIUtility.IconSizeScope(new Vector2(17, 17)))
                    GUILayout.Label(iconContent, GUILayout.ExpandWidth(false));
                GUI.enabled = false;
                EditorGUILayout.TextField($"*/Resources/{resPath}");
                GUI.enabled = true;
            }
        }