I've been using black wallpapers on laptops for... man, has to be almost 20 years now. I used to run multimedia for a church group on a Mac with Keynote, and a

I've been using black wallpapers on laptops for... man, has to be almost 20 years now. I used to run multimedia for a church group on a Mac with Keynote, and all our song lyrics and everything else started and ended with a fade from black or fade to black. This meant that instead of having to try and organize a full deck before every Friday, I could just have all the needed stuff open, and if the worship band decided to change order of songs for some reason or another, it wasn't hard to follow. It worked well, and I don't think anyone who wasn't up with me in the multimedia area realized that they were seeing desktop wallpaper most of the time. Related, I'm exceedingly adverse to icons on my desktop - because more than a few icons would spill to the other desktop when resolutions changed to match the (old, beat up, I think 1024x768 at best) projector we used, and therefore show up on the presentation screen. I still think Keynote is the best presentation software I've ever used... even though I don't use Macs anymore. :/ Just means I recognize how horrid LibreOffice is at doing any sort of slide layout. :(