Show HN: Hiding messages as a generative art; open sourcing my code from 2020 (stegano.graphics)

I've always been fascinated by secret messages, and for years I scribbled ideas for a graphical way of hiding messages that would be decipherable by humans without computers, while still being non-trivial and novel.

This is what I came up with in 2020 (pre-LLM era ^^). The shapes are inspired by fingerprints.

The name comes from "steganography", the art of hiding messages in plain sight.