Commands for the turtle's pen

Click on the tab for the pen to see the following tools:

	pu = pen up – Picks up the pen so that the turtle does not draw.
	pd = pen down – Puts the pen down so that the turtle can draw.
	Set pensize – Sets the width of the pen. The larger the number the fatter the line.
	Set color – Sets the color of the line that will be drawn. The value can be 0 to 99. See the table for colors.
	Set shade – Sets the brightness of the color. 0 will make it blacker. 99 will make it whiter.The example shows color 0 at shade of 0, 50 and 99.
	Fill screen – Fills the entire screen with the color and shade shown.