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Re: invert-face does not invert faces


From: Eli Zaretskii
Subject: Re: invert-face does not invert faces
Date: Sun, 28 Oct 2001 22:31:57 +0200

> From: address@hidden (David Kastrup)
> Date: 28 Oct 2001 18:35:04 +0100
> 
>     Eli> I don't have access to an X version where I type this, but on
>     Eli> a tty, invert-face works for me as advertized, at least for
>     Eli> the `default' face.
> 
> The default face hardly qualifies as a face with non-specified back-
> and foreground colours.  It is the only face guaranteed to have
> everything specified.

Not on a tty.  On a tty, the default face has unspecified colors,
unless you invoke Emacs with explicit -fg and -bg switches.

>     Eli> Hmm... What about "unspecified-bg" etc.?
> 
> Uh, what about it?  Something like that is nowhere mentioned in the
> Elisp manual.

Try "M-x apropos-documentation RET unspecified-bg RET".

> Have you just invented it?

No; why would I do such a thing?

> Read the Elisp manual if you don't believe me or try it out.

I believe you, I just want to understand what you are saying, and I
don't always have time to try out everything myself.  Would you please
help me?



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