GNU bug report logs - #54156
28.0.91; set-face-attribute with a nil FRAME doesn't change the default

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Damien Cassou <damien <at> cassou.me>
Cc: 54156 <at> debbugs.gnu.org
Subject: bug#54156: 28.0.91; set-face-attribute with a nil FRAME doesn't change the default
Date: Fri, 25 Feb 2022 13:15:32 +0100

Damien Cassou <damien <at> cassou.me> writes:

> I have this in my init.el file:
>
> (set-face-attribute 'finsit-javascript-html-tag-face nil :background nil)

It's perhaps easier to reproduce with a standard face:

(set-face-attribute 'region nil :background nil)

Eval this and mark some area and see that it marking a region no longer
has a background.  `C-x 5 2' and everything is back to normal in the new
frame.

However, this works:

(set-face-attribute 'region nil :background "red")

So it looks like setting something to nil is forgotten?  I.e., there's
no difference between nil and "use the default", I'm guessing, but I
haven't tried to debug further.  Anybody familiar with the code in this
area?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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