Is this a place for suggesting as well? If so, i'll give my suggestion:
Can you make it easier to simulate "drawing" in a C2 game? (I'll give you more info on that)
It's already simple as it is.... A digital graphic is a combination of pixels. Imagine a dot as a single pixel, an aligned combination of pixels is a line, and a combination of patterned pixels is a graphic.
In C2, you can make a 1x1 black colored sprite as a black pixel. Create the sprite in loops as you "hold and drag' the mouse.
Now you have a pencil tool.
For more info, check out his tutorial:
https://www.scirra.com/tutorials/1207/h ... ing-canvas