the original ricers were Japanese cars (early 80s), then from there rice came to mean cars with Race Inspired Cosmetic Enhancements (90s) + from there we get rice'd out desktops (which is new to me but whatever).

I am not as sure a rice desktop png is racist but if you feel like the term is opressing you or holding you back, could you consider opportunities to reclaim what is a good word (who doesn't like rice?) and use it for positive cultural elements (modded desktops)? I don't want to cede a good word to uninformed peoples from 40 yrs ago...history is too short to let them win!