Click the green flag and watch. Adjust the sliders if you like. Click the switch to toggle between color and zebra stripes.
This is basically a clone version of Nested Ellipses 2: https://scratch.mit.edu/projects/510749892/ This method is much easier, since no trigonometry is needed, and is much faster since it doesn't have to calculate all the pen positions each frame. And it makes it easy to use filled ellipses. However, if you want ellipses with uniform outline thickness, Pen is the way to go. The inspiration for this project series is this image: https://en.wikipedia.org/wiki/File:Nested_Ellipses.svg
