Just watch it. Or press the Spacebar or click on the screen to stamp the current swirl to make an interesting swirling on background image. Pressing C will clear the screen if you have stamped anything. (And I guess if you are on a mobile device you'll just have to reload the project. But, it is very small and should load quickly)
Clones of a sprite make a swirly pattern as the script changes the clones colors. Update: 6/2/2025 - Now mobile friendly. Thanks LionKing3c for pointing that out.
