shape:

size:

mode:

brush:

symmetry:

color 1:

color 2:

image upload:

opacity
i
q = toggle toolbox visibility
t = toggle trace mode
1-8 = select draw shape
[ ] = grid size down and up
d = draw mode
e = erase mode
x = rotate brush sizes
i and o = color 1 and color 2 eyedropper
cmd/ctrl+click = draw straight line (only 1x1)
cmd/ctrl+z = undo
cmd/ctrl+shift+z = redo