That's similar to the process used to generate https://allrgb.com/order-from-chaos https://allrgb.com/order-from-chaos except that the pixels used in that algor

That's similar to the process used to generate https://allrgb.com/order-from-chaos https://allrgb.com/order-from-chaos except that the pixels used in that algorithm weren't chosen entirely at random, and they sometimes randomly allow a swap even when it increases the difference, in order to escape from local optima ('simulated annealing').