Aesthetics matter in all-day ux. Gaps make content more legible and less fatiguing imho. It looks amazing against a #000 background on oled screens, for example.

I've spent at least the last 6 years removing i3 and installing i3-gaps on all my new machines (and having to comment out gaps in my dotfiles/i3config while I do it). I didn't think I'd ever see this merge. This is awesome!