The programme starts on a yellow pencil. To change colour press the coloured block or press the key of the beginning letter of that colour i.e r for red (for black this will be the space key). To change to the eraser click the eraser button at the top or press e key, to clear the whole page press the X or x key. To change the width of the pencil, use the slider or up/down arrows. To change the saturation and brightness use the sliders or left/right arrows for brightness and a/s keys for saturation.
