When I try to use the fill tool, it often fills way more than I need. I think this is due to the fact that I can draw outside the white frame that is given. Does anyone know how to turn this off and make it so that it is only possible for me to draw inside the given area and everything outside is deleted.
What might not be obvious is that in Pencil2D view of the world, the canvas extends an infinite distance out in all directions. It is not limited to the area that us displayed on your screen.