Re: assuming light or dark background

[Dave Love]

Jason Rumney <jasonr@gnu.org> writes:

> jidanni@jidanni.org wrote:
>> RFCs are unreadable now for me. Must be due to
>>
>>   (defface rfcview-headlink-face
>>     '((t (:foreground "blue"))
>>       (t (:bold t)))
>>     "Face used for hyperlinks to headings."
>>     :group 'rfcview)
>>
>
> This doesn't appear to be part of Emacs.

Indeed.  It isn't part of
<URL:http://www.loveshack.ukfsn.org/emacs/rfcview.el> either.

> Probably a better way of
> defining that face is
>
> (defface rfcview-headlink-face
>    '((t (:inherit 'link)))
>    "Face used for hyperlinks to headngs."
>    :group 'rfcview)

(facep 'link)
  => nil

> That way it will take advantage of any variations that already exist
> for the built-in link face, such as light, dark, grayscale, or user
> customizations.

If there was a face defined for hyperlinks in the relevant versions of
Emacs, it would be appropriate just to use it (with the `face' custom
type), not define more vanity faces.  That was what we intended for
Emacs 21 as far as I remember, even if it didn't get done well.  I
shouldn't have 281 separately-defined faces in my current session --
Gnus being the biggest culprit.