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From: Chong Yidong <cyd@mit.edu>
Newsgroups: gmane.emacs.devel
Subject: Re: bind faces?
Date: Sat, 13 May 2006 14:07:57 -0400
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"Drew Adams" <drew.adams@oracle.com> writes:

> I think the answer to this is "no", but I'm not sure:
>
> Is there some way to get the effect of "binding" a face to a list of face
> properties or the properties of another face? That is, do something akin to
> this:
>
>  (let ((some-face another-face-or-a-list-of-face-properties))
>    (do-something))
>
> Wouldn't it be useful to be able to do that? We have `let' for variables and
> `flet' (via cl.el) for functions, but nothing for faces, IIUC. (Obviously, a
> user could work with face variables, but those are not always available and
> their use is generally discouraged.)

See face-default-spec, face-spec-set, and the other functions in
faces.el.