I’ve been using vi (nvi) and mg and both doesn’t have syntax highlighting. I’ve copied a monochrome theme of github for my vim setup and my emacs config is using modus operandis which is somewhat minimal and muted.

While I can use rainbow color, but this day syntax highlighting kinda fades into the background as I don’t care that much. I like it for something like React and html for the tags part but indentation is much better than highlighting in my opinion.