Thread:JoshuaJSlone/@comment-6092594-20190729041525/@comment-131168-20190729050630

Short answer: It's a little convoluted. I would be willing to help, but that would basically involve gathering together all the eligible covers to share with me.

Longer answer: For an unrelated project online involving generating graphs, I knew how to tell it to add in my site icon in a corner. I realized if I could do it once I could do it a hundred times. So the bulk of those backgrounds is actually an unconventional use of PHP graphing software JpGraph. Use some code to randomly pick from the list of images (already conveniently stored locally at fairly small size due to work on DohBell), choose random coordinates, make sure if it's drawing on an edge to also draw on the opposite side so it will tile well, then loop a bunch of times. Which made it fairly easy for me when I was updating quarterly to change which images were in the random pool, but a lot of setup for anyone else.