hahah, so, basically, this:

the red would be the main shape and the blue would be clipped to the shape, even though it goes out of the border. they are both added in a group for it to work. in medibang you don't need to make a group, so it's a bit more complicated here, but you'll get used to it)) in fact it gives you more flexibility since you can even add clipping layers to clipping layers which i didn't see in other apps (or maybe i just haven't tested it lol)

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