Today I was on the floss manual checking for errors on turtle command pens. So I was trying out
some of the blocks to see if they would do what the manual said it would do.

I ended up changing the background color and the pen track color that the turtle leaves when it moves
with the blocks you see on my screen shot below. The Fill screen panel changes the background of the screen.
And the set color pannels changed the turtle trail to what ever color, depending on the number you
type in on the side bar for both pannels.

I used GIMP to take the screen shot, saved it then uploaded the picture to tinypic.com and paste it on to here.