Watch it go on and on. Change the slider to adjust the type of "drawing" made. If you want to see a (sort of) an illusion turn on turbo mode, go inside the project click edit then click turn on turbo mode and then click see project page and click the green flag and se the print slider to -200 and stare at the white dot in the middle of the object. You will see it expand but it is not.
https://scratch.mit.edu/projects/965204230 /\ | CHECK OUT NEW FEATURED PROJECT!!! PLEASE