That would be a great feature. You could spend 500 shapes on the background and 500 on the foreground, instead of needing 3000 to get high detail everywhere. I

That would be a great feature. You could spend 500 shapes on the background and 500 on the foreground, instead of needing 3000 to get high detail everywhere. It would be possible to do that in the app if you could restrict new shapes to a specified region.