There's far worse things than black wallpaper, in fact thats what I set for my personal machines. I recently had to push this out https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQIz52EKon9CsaCexSMQFLeue3iMzHb6_feBxwnGeXH2Xclfuq2cQ&s
There's far worse things than black wallpaper, in fact thats what I set for my personal machines. I recently had to push this out https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQIz52EKon9CsaCexSMQFLeue3iMzHb6_feBxwnGeXH2Xclfuq2cQ&s