linuxmemes

My desktop background has been the same shade of dark blue for the past roughly quarter century.

At first, it was because I didn't want anything making visual recognition of stuff slower, when I was using a stacking windowing environment. Now I use a tiling windowing system and rarely see the desktop.

On my Android phone, for some inane reason, there's no option to just use a fixed color background, so I've never bothered changing it from whatever the vendor shipped, don't care enough to make a custom one-color image. I'd probably use black on the Android devices I have with OLED screens on general principle, but again, it doesn't spend much time being visible.

All that being said, if you're looking at screenshots of people ricing out their desktop on a community devoted to that, the whole point is to give them an interesting thematic look. They're gonna have a background.

If you took a screenshot of my desktop, it'd be one blue rectangle. No persistently-visible taskbar. The vast majority of time, if there's a window up, I have only a single, fullscreen window. That's not really interesting to look at, and I doubt that anyone doing that is going to put it on a "rice your desktop" community, in the same sort of way that nobody is going to go to a "rice your car" community and post images of a vanilla Camry.