Plus Mara already did a similar thing using mempool.space's fee visualization before.
Discussion
Oooh link?
https://protos.com/you-can-now-mine-rather-than-inscribe-a-square-bitcoin-block-image/ But looking at it, mempool might have changed something?
Neat! You have to add audit=false
Indeed they did, but I assumed it was a paid service these days.