Use the left mouse button to draw. Clear canvas: Down arrow. Eraser Mode: E button. Color controls: Buttons for colors: 1:Red 2:Orange 3:Yellow 4:Green 5:Light blue 6:Dark blue 7:Purple 8:pink 9: Black z: decrease brush size x: increase brush size Or use the slider (Which can be turned off with o and on with p)
Based on the one I made a while ago on my other account. a bit better.