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From: Visuwesh <visuweshm@gmail.com>
To: 55623@debbugs.gnu.org
Subject: bug#55623: 29.0.50; Mention that (face-foreground 'default) can return "unspecified-fg"
Date: Wed, 25 May 2022 11:09:04 +0530	[thread overview]
Message-ID: <87ilpub287.fsf@gmail.com> (raw)

In a tty frame and when using a theme that does not explicitly set the
default face's :foreground/:background [1], (face-attribute 'default :foreground)
returns "unspecified-fg".  This value is surprising when the docstring
of `face-attribute' says,

    To ensure that the return value is always specified and absolute, use a
    value of ‘default’ for INHERIT; this will resolve any unspecified or
    relative values by merging with the ‘default’ face (which is always
    completely specified).              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ^^^^^^^^^^^^^^^^^^^^^

I opened the Elisp manual and tried to isearch for "unspecified-fg", but
it got me no matches.  It would be nice if this return value was
documented somewhere.



[1] If I use the adwaita theme instead, then `face-foreground' does
    indeed return a colour.

P.S. I'm filing this bug report after this was brought up in
https://github.com/alphapapa/ement.el/issues/34#issuecomment-906893756.





             reply	other threads:[~2022-05-25  5:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-25  5:39 Visuwesh [this message]
2022-05-25  7:17 ` bug#55623: 29.0.50; Mention that (face-foreground 'default) can return "unspecified-fg" Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-05-25  7:53   ` Visuwesh
2022-05-25 13:18     ` Eli Zaretskii
2022-05-25 14:57       ` Visuwesh
2022-05-25 17:07         ` Eli Zaretskii
2022-05-25 17:22           ` Visuwesh
2022-05-25 17:37             ` Eli Zaretskii
2022-05-27  5:44               ` Adam Porter
2022-05-27  6:34                 ` Eli Zaretskii
2022-05-27  7:27                   ` Adam Porter
2022-06-28 21:37                   ` Stefan Kangas

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