Last edited on 14 Feb 2021 by Quarryman.
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The idea came from a Facebook post by Patapom with some of these static animated brainteaser pictures, I tried my best to make it look like the original, and it's actually using the entire visible screen area like in fullscreen :)
Original post: https://www.facebook.com/Patapom/posts/10158451888604846
The illusion works. One nice effect for ultra-low CPU usage. ;)
I'm not sure I would call that ultra-low CPU Usage considering the background chessboard is done by bashing the background color register over all the screen :D