This is a great idea! Besides art pads, here are some other ideas for this block that I can think of: Something which takes whatever is on the stage and takes a few pixels and turns them into large dots. Not very useful, but it is fun to make.
You could extend that idea and use it to create pixel art templates in the app.
You could make color wheels for picking colors more easily.
You could make zoom on art pads
Interesting idea, but it can’t know what way you want the colors to be.
It doesn’t know if you want a rainbow or grayscale, so I think the idea might need some improvement.