Credit to sebasvanb I noticed how even the simplest pen projects that make pattens that don't use sine, cosine, tangent, in, log, blah blah blah, are actually quite good! Also I realise that every time I come across a cool pen project and fiddle around with it, I end up remixing it with sliders. The black backdrop makes it look cool, but don't use it with a black pen! You can change the size and shade while it's still going. Oh and BY THE WAY, use Turbo Mode (Shift+Click Green Flag) if you want it to go slightly faster. Green Flag to restart, and, I nearly forgot, SPACE TO TURN OFF THE SLIDERS!!!