I always find myself wanting just a little more terminal text style control. Usually I’m left wishing I had either an alternative font mode or double sized text. (Double specifically to avoid breaking the X*Y text cell grid)

But little wishes for extra expressiveness aside, i really don’t think terminal UIs would benefit from anything like CSS. The terminal functions as my working environment. I rely on being able to visually pattern scan for errors, warnings, typical command output, time stamp and log alignment etc. I do not want anything messing with how I set all this up.