Q=Red W=Yellow E=Dark Green R=Blue T=Purple Y=Pink U=White I=Black O=Grey P=Lime Click the plus and minus arrows to change the size of the pen. click on colour to show the colours. The one with a orange cross through it shows the selected colour. The colour are in order corresponding to the top line of the keyboard (QWERTYUIOP) (e.g. Q=1st colour =Red)