I'm heading in similar direction. also using Arch Linux, VIM. do like i3 & tmux, using suckless terminal (I like terminal in true colors). and tend to favor default settings everywhere unless really really forced. installation takes couple hours (IF you know how) - lasts for eternity.
Most modern terminals support true color now [1]. My current favourite is Alacritty because of the combination of speed (hardware acceleration), simplicity (no menus or dialogs), and configurability (including key bindings) with a simple plain-text file that can be kept in version control [2].
