Hi! I'm using your plugin (BTW, it works perfectly in OC4, so you can update the compatibility support if you want). I only found 2 problems:

• the model icon field must be defined as jsonable in the model, or it won't work. This is not mentioned in the readme, it would be perfect if it was documented.
• how can I delete an existing icon? If I remove the current icon from a saved model (with the X button) and save, the value is not overriden, so the field is not emptied.