Subject: bug#61396: diff mode could distinguish changed from deleted lines

From: Dmitry Gutov <[email-masked]>
Date: Fri, 10 Feb 2023 15:58:40 +0200

On 10/02/2023 05:25, Samuel Wales wrote:
> a fix is to have a different face for changed lines.  i
> suggest a muted bg face.  another fix is to stick a colored
> marker INDICATOR in A where changes in B exist.
> 
>    -now is the time^
>    +now is the time FOR ALL GOOD MEN
> 
> where ^ is a colored marker -- actually just a changed bg
> for the newline in this case would work, but i don't think
> emacs supports that.

Doesn't the "refinements" feature serve the same purpose?

In my testing, "FOR ALL GOOD MEN" is additionally highlighted with the 
diff-refine-added face. Which adds an emphasized background.