A tribute to one of the first programs I've ever wrote in BASIC using the graphical mode of my AppleIIe, back in the early 90s, but with more resolution, colors, and speed though.
appleii, basic, lines, commodore, commodore 64, old school, retro, colors
This is an attempt to help out with image persistence or "screen burn" on LCD screens that might have been caused by "harmonic" flickering (half or a quarter of refresh rate frequency) in relation to the screen refresh rate, potentially causing static-related inversion artifacts on polarized screens.