GNU bug report logs - #67810
29.1; fonts use synthetic bold on Linux / pgtk

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From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: crypto <at> timruffing.de, 67810 <at> debbugs.gnu.org, stefankangas <at> gmail.com
Subject: bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk
Date: Sun, 14 Jan 2024 21:44:53 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

> There are faces that Emacs imposes that are not controlled by
> packages.  For example, the buffer name on the mode line is displayed
> in bold, and changing that is not easy.  Why cannot we allow users to
> tweak this issue by providing a simple variable?  What are the
> downsides?

It can't be guaranteed that this variable will work, because Emacs is
not the only program synthesizing bold variants from fonts that don't
incorporate them.  Moreover, little-used options that control these very
particular aspects of our font display tend to fall into disrepair: for
instance, Vvertical_centering_font_regexp didn't function on any system
besides X, until yours truly implemented it for Android, a state of
affairs that remained unnoticed for upwards of a decade.

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