Parrot Home edition.
Nothing fancy. I like a quiet looking desktop when I start up the machine without "shouting" at me with all sorts of colors and icons and conky scripts. easy does it.

(image of pure black desktop with small icons in the upper corner.)
Same with me, but pure black is too dark. I prefer a medium dark gray; you could call it "light charcoal". I like solid desktop backgrounds because they make it easy to see windows and icons.
I reserve gray for the admin account and use a similar solid "denim blue" shade for the backgrounds on my unprivileged working account, where I spend most of the time. It is a subconscious reminder during times when I work with escalated privileges. I also use a solid pink background for an account I keep for my partner to backup and sync her phone and pad as a service for her.
I tend to use the desktop as a cache for work-in-progress-since-the-last-time-I-cleaned-up-the-desktop. I wish I could acquire the habit of maintaining folder organization as I work, but it is not easy for me to work that way after a lifetime of doing it wrong. I like seeing the folders that I need by hiding the active windows. It is quick and easy, but a bad habit that leads to clutter and disorganization.