So from left to right: The brush is size, the paint can (yes, it's a paint can) is color, the pencil with brush is temporary eraser (it'll switch back to brush in a couple of secs), the star-looking-thing is transparence-y, and the pink eraser will erase it all. Oh, just so ya know, you can draw everywhere, not only on the white square, and the eraser is just white so it won't 'erase' if you draw off-canvas And if anyone actually gets down here type 'oh' in the comments, will ya? :P
I was slightly inspired by a museum I went to and there were screens you could draw on... Yeah. And thanks to my bro @whomping-willow for giving me some advice. (Also remember, this is SIMPLE and not very good... :)
