bug#57813: Icon images are non-functional

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: 57813@debbugs.gnu.org
> Date: Sun, 18 Sep 2022 22:06:56 +0300
> 
> > Thanks.  I only quickly read the patch, and have one comment: the
> > hard-coded left-margin should depend on the value returned by
> > current-bidi-paragraph-direction, because text that is displayed
> > right-to-left should have the icons on the right margin, not left
> > margin.
> 
> To not create a new mirrored image file for RTL arrow required a change in
> icons--create to support ':rotation 180' for the existing image file:
> 
>   (define-icon outline-close-rtl-in-margins outline-close
>     '((image "outline-close.svg" "outline-close.pbm"
>              :height 10 :ascent center :rotation 180))
>     "Icon used for buttons for closing a section in outline buffers."
>     :version "29.1"
>     :help-echo "Close this section")
> 
> Then the right margin could be used with:

Thanks, the code LGTM.