@ℹ️❤️🖥 aka Compy-chan This kinda reminds me of the rickroll animated gif where each frame was a valid QR code that pointed to the video in question. For the life of me I can't find the original gif, but I could find this one frame. The animated version was much more impressive.

@ℹ️❤️🖥 aka Compy-chan That's the one. The original post explained how it worked. It's one of those things that's so simple in hindsight it makes you wonder why you didn't think of it yourself. Basically each pixel (apart from the anchor pixels) are split up into a 3x3 grid of smaller pixels. Only the one in the centre needs to be the "correct" value. If you watch the animation, you can see a grid of smaller pixels that don't change.