Hey, Scratch! I'm back, and I have now made a pen art project. This is my first one, and I tried my best, but if you have any suggestions, add them in the comments. Press: space key to start and adjust the color, c to clear, move your mouse around to move the control sprite around. If there is any lag, like you can't get the colors to start spazzing out (which is what they are supposed to do), click the green flag twice, it should help.
If you have any suggestions to add, comment either here, or on my profile. ^-^ XD