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

From: Dmitry Gutov <[email-masked]>
Date: Sun, 12 Feb 2023 03:04:50 +0200

On 12/02/2023 02:52, Samuel Wales wrote:
> this is a bug against emacs diff-mode.
> 
> diff is not responsible for diff-mode colors.  diff-mode is.

See the user option 'diff-refine'.

Coloring several lines using a "change" face, OTOH, can lose (or at 
least conceal) information: which lines were actually deleted, and which 
were added.