Re: Question about customising faces

[Gregory Heytings]

> Actually, nil is not valid as a color, but people still use it.
>
> See the discussion of bug#54156.

I remember that discussion indeed.  So according to what you said there 
Joost should use

(set-face-attribute 'isearch nil :background 'unspecified :foreground "#d33682")
(set-face-attribute 'isearch t :background 'unspecified :foreground "#d33682")

What I don't understand is why the second call to set-face-attribute is 
needed: here at least, the first call also affects future frames.