Move the mouse around and let the clones paint an image. The clones move at different speeds and with different offset angles. The color they create is based on their speed and offset angle.
Thanks to @Chrome Cat for the original project-- I remixed it because I thought it would be better if it had some lighter colors--- but... never-mind! Instead of a boring white wallpaper thingy, it now looks a TINY bit cooler.... Added two blocks of code. just TWO blocks.