更改关卡编辑器怪物图标选中颜色

ActionTowerDefense/Assets/GameLevelEditor/GameMap/CoreScripts/Editor/GameMapEditor.cs

@@ -1136,7 +1136,7 @@ public class GameMapEditor : EditorWindow
 
 		GUI.color = Color.white;
 		GUI.contentColor = Color.white;
-		GUI.backgroundColor = Color.white;
+		GUI.backgroundColor = Color.black;
 
 		// *** auto-tiles
 		for (int i = 0; i < asset.tileAsset.autoTiles.Count; i++)