[hakfoo]

You can still get a handful of non-RGB cases. They're usually sold as the "Silent" version (i. e. Fractal Pop series, Gamemax Titan Silent series) since the non-glass side panels often have sound-deadening material glued in.

15 bucks of rattlecans will make any case beige. :)

I'm sort of waiting for a motherboard manufacturer to weigh in though. Even the "pro" ranges tend to be black PCBs with a lot of complex silkscreening. The boards that don't have any of that tend to be OEM-tier boards with skimpy features. Surely someone can make an X870E-VINTAGE board with a green or yellow-brown substrate, no nonsense silkscreening, and finned brass heatsinkage that looks like the sort of thing you saw permanently glued to your 486DX2/66 CPU?

I want the aesthetic, but that can still be implemented in the context of no-compromises modern hardware.