>> There are some underlines on this screenshot, maybe use underlines for
>> refined diffs on tty?
>
> You mean colored underlines for every line? Umm, not sure I'd like that.

Actually I meant underlines instead of inverse-video.  Underlined refinement
looks much better than in inverse-video.

Also I propose to not use this feature on tty because there is no good
solution how to combine diff foreground colors with syntax foreground colors: