Ah okay I found a workaround... After you select the flat color layer and create a New Mask Layer...then you create another empty layer and drag and drop it INSIDE the flat color layer with the mask. This somehow makes it so when you draw inside the new empty layer...it paints only inside the flat color area...that's it. Whoever needs this trick...I hope he/she finds this helpful!
Hi there people! I finished the linert of my drawing, now I have to color it. Problem is...I need to color inside my flat color without the brush go out of it. In Photoshop, I used to put a new layer on top of the flat color and -> Create Clipping Mask Is there a way I can do that in Affinity Pro for iPad?