hi
here is my desktop on one of my laptops. I'm also often choosing dark/black wallpapers: reading/working at night is more relaxing. Right: "Fences", Left: "Object Dock", Left Corner: "AIMP"
I'm using it since abou 3 years. You can darken all windows in the background
and also your desktop (with all icons). So if you have a dark wallpaper and dark
skins for all your applications then it's really relaxing to work the whole night with
your big 27'' monitor or sit with a laptop in front of a large TV-screen.
....a second feature ("Transparency"):
Enhance windows management (Transparency, size, roll-up) with right-click options