That's really odd. I've tested on Brave and FireFox on Linux Mint and no issues with the text like that. It looks like some kind of repeated pattern, maybe it's trying to recolor the pixels before the image is loaded... So the image ends up as random data at a random size. That's the only thing I can think of that'd introduce those colors. Does it always happen or is it fixed on reload?
Anyway, thank you for playing! :)