allows the user to paint with a spray of ROYGBV pictures, a handful of
images for each color; in-betweens, such as reddish-orange, are
created by dithering. Switch on/off the voltage by clicking on the +5V supply
switch. Reset the picture canvas with Space or Return.
It was so sad to see electronics components spread out on the canvas, all suggestive of electrical functionality, circuitry, and blinky lights -- and then to be denied any taste of it. Therefore: