Turn on turbomode and click the GF. You can also press “A” for a display with stepped through values. If you want to try your own values, edit the lists in the Stage. Or use Crkcity's program which has sliders.
Thanks to crkcity for the original project fractalesque double hypotrochoid in a few code blocks. I had so much fun playing with this simple but elegant graphic program that I started saving my favorite settings in a table (I mean lists because we don't have tables). I also added Motion across the screen.
