You can draw finer lines by drawing a thick one and then erasing part of the line with the background color? On an android phone? I'm extremely impressed. Whe

You can draw finer lines by drawing a thick one and then erasing part of the line with the background color? On an android phone? I'm extremely impressed. When I try to do stuff like that on Android I'm lucky if the input drawing box stays still. I easily agree that they're possible to draw, just not at all easy to use multiple colors to precisely remove a fraction of a line width from an existing path.