Open-source RGB lighting control for keyboards, fans, etc
If you're in this thread "I built a PC, all my stuff has RGB, it's fine but I don't get it", try setting them all to the same color - you might be surprised how nice it looks. I set everything to white, but my roommate has a nice shade of purple he uses for everything. My real golden rule is absolutely no motion. Can't stand cycling rainbows or whatever.