How about we fix this by:
- Giving them color properties.
- A way to unlock/lock them for real, rather than switching a Treasure Chest with a disabled one by using the Move Item function (but even then, their functions do not move with the Chests themselves).
- Self-opening Chests, done with a trigger of some sort. (These could be used for magical purposes, or for cutscenes. CUTSCENES.)