Re: No NEWS entry for doc-view-mupdf-use-svg (Emacs 30.0.91 feedback)

[Eli Zaretskii <eliz@gnu.org>]

> From: Tassilo Horn <tsdh@gnu.org>
> Cc: morgan@ice9.digital,  emacs-devel@gnu.org,  visuweshm@gmail.com, Manuel
>  Giraud <manuel@ledu-giraud.fr>
> Date: Mon, 23 Sep 2024 14:05:30 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> Eli, what do you think?
> >
> > Sorry, I don't understand what you are asking me about.  Please
> > elaborate
> >
> > It sounds like PDF documents with colors have inherent problems with
> > doc-view-mupdf-use-svg and/or themes, so maybe we should warn about
> > this in NEWS and in the doc string, and suggest that people either
> > customize the doc-view-svg-face, or disable doc-view-mupdf-use-svg.
> 
> Yes, exactly.  There can be foreground-similar-to-background color
> issues when mupdf + doc-view-mupdf-use-svg is used for certain, not
> uncommon documents.
> 
> We can either document that issue in NEWS and docstrings, or we can
> simply set "black on white" as default value of doc-view-svg-face which
> would eliminate those problems (and match what we had in emacs 29 before
> the face was introduced by Manuel Giraud) but would stop trying to apply
> our emacs theme to the document, too.
> 
> I'd rather be conservative, use "black on white" as doc-view-svg-face
> default value and document in NEWS and doc-view-svg-face's docstring
> that one can style documents according to the emacs theme by inheriting
> from the default face and not explicitly setting foreground and
> background colors.

Agreed.