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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: High-res Customize icons
Date: Thu, 23 Apr 2020 22:40:45 +0300
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To: Yuan Fu <casouri@gmail.com>
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In-Reply-To: <868D5BA0-BA69-47A4-A4CE-14A38B0E94DF@gmail.com> (message from
 Yuan Fu on Thu, 23 Apr 2020 15:35:19 -0400)
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> From: Yuan Fu <casouri@gmail.com>
> Date: Thu, 23 Apr 2020 15:35:19 -0400
> Cc: Werner LEMBERG <wl@gnu.org>,
>  Juri Linkov <juri@linkov.net>,
>  Yuri Khan <yuri.v.khan@gmail.com>,
>  Clément Pit-Claudel <cpitclaudel@gmail.com>,
>  yandros@gmail.com,
>  emacs-devel@gnu.org
> 
> Apart from the font vs image discussion, what about the idea to add @2x images support to Emacs?
> WDYT? Basically, we add name@2x.xpm images along side the existing name.xpm images. And find-image
> would prefer those @2x images if, say, image-prefer-hidpi is non-nil.

I don't think I understand what is meant by @2x images, but the
general idea of preferring certain variants of images given some
aspect of the environment is sound.