Keyboard commands: Space = toggle between pen and 4 costumes Right arrow key = increase pen/stamp size Left Arrow Key = decrease pen/stamp size Up Arrow Key = increase background brightness Down Arrow Key = decrease background brightness A = Automatic pen color mode R = Rainbow pen color mode M = Manually choose pen color When in Manual pen color mode, the following keys apply: X = Increase pen color Z = Decrease pen color 1 through 9 = Select pen shade 0 = Select pen shade 100