I imagine if you're hopping on and of dozens of different systems daily, it might help to have the host and username pop out at you even if everything else is g

I imagine if you're hopping on and of dozens of different systems daily, it might help to have the host and username pop out at you even if everything else is greyscale. It's sort of how I always set VMs to have a dark grey flat background. Makes it easier to see at a glance whether you're in a fullscreen VM or the host system.