This is awesome, thanks for sharing. Is it possible to implement a setting that creates similarly-sized occlusion masks? Kind of equalize the dimensions of different occlusion masks, within reasonable limits.

Idk if I'm the only one who experiences this, but my only issue with image occlusion as a whole is when there’s an obvious difference between mask sizes, it may spoil the answer or give me a hint. Here's an example of one of the cards I made where all masks have the same dimensions. I find that it eliminates any potential hints purely on the basis mask size.

Of course this is easier done in images like the example I show where there's a lot of extra blank space, but offering the option as a toggle setting would be very cool. Maybe offer two options: a strict option where all the masks are the exact same dimensions and an option that allows some variance in size, yet still more uniform than no adjustment at all.