As an idea for Photoshop:
All this time, for decades really, Photoshop has not developed the Bucket Tool.
I draw in Photoshop. It is really handy to fill a closed form but of course, due to the feather of a pencil stroke, you always have to do the tiny white lines between the fill and the original stroke by hand.
It would save many hours to many if the photobucket was smart: simply understanding that it needs to actually fill a form without white lines but leave the outer parts of the closed stroke untouched. I mean: we can now use AI for a background but the bucket is never taken to a next level?
I count on you, Adobe!