Hold down and move the mouse to draw. Press the left/right arrow keys to change the color. Press the up/down arrow keys to change the size. You can also use number keys to change the color: 1 for red 2 for orange 3 for yellow 4 for light green 5 for green 6 for cyan 7 for blue 8 for violet Press 9 to fill screen with the selected color Press Q, W, E, and R for stamps Press 0 to exit stamp mode Press Space to clear To save your drawing, switch to full screen mode, take a screenshot, and use a cropping tool to get rid of everything but your drawing.