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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Question about display engine
Date: Mon, 26 Aug 2019 12:49:27 +0300
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To: Ergus <spacibba@aol.com>
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In-reply-to: <20190826081819.cuhm3tpw3lq3m5jh@Ergus> (message from Ergus on
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> Date: Mon, 26 Aug 2019 10:18:19 +0200
> From: Ergus <spacibba@aol.com>
> Cc: rudalics@gmx.at, emacs-devel@gnu.org
> 
> >> Could you please finally explain what are all the points needed in the
> >> implementation? And more or less the changes needed/expected?
> >
> >Regarding face extension, or regarding highlight-indentation?  These
> >were 2 separate discussions, but you somehow conflated them together
> >in your last email.
> 
> Regarding face extension

The summary was posted by Martin here:

  https://lists.gnu.org/archive/html/emacs-devel/2019-08/msg00324.html

If something there is unclear, please ask specific questions.

Thanks.