bug#25022: 25.1.50; Different highlighting for different citation level in message-mode

[Lars Ingebrigtsen]

Hong Xu <hong@topbug.net> writes:

> Add support for different faces for different citation levels in
> message-mode.

I had another look at reusing the gnus-cite code for this instead, but
it's just too much code to inflict on non-Gnus users.

So I've applied your patch now to Emacs 27, and it seems to look nice to
me, but of course, since virtually all my mails are generated from a
Gnus context, I won't be seeing these citation faces a lot.

If anybody else wants to tweak the faces, please go ahead.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no