RC file woes

[Mike Oliphant <oliphant ling ed ac uk>]

Ok, I've managed to mostly get me head around gtk's .rc files, but I am
still having a bit of trouble.

First, I have a notebook with a number of frames inside it. I want the
contents of one of the frames to have a different background color.
Ideally, I want to be able to change the color of a vbox inside of a
specific frame.

So, in my .rc file, how can I:

 o address the *contents* of a frame (in this case a vbox), rather
   than the frame itself

 o address a *specific* frame inside of a notebook


Thanks,

Mike