Naviary on youtube has made just that. Their videos are amazing, mostly going over the theory created by having an infinite chessboard (“mate in omega” and it’s sequel are mind boggling), and some are about the technical aspects of implementing infinite chess. Highly recommend watching them.

And just the effort of painting every one of those pixels one by one, it’s not like we have some magic tool to fill an image with the same color and call it a day.