Problem with setting background for GtkViewport

[Luis Oliveira <luismbo netcabo pt>]

Hi,

I'm using a gtkrc to set the background of my app.

  style "my_window"
  {
     bg_pixmap[NORMAL] = "background.xpm"
  }

  widget "main_window" style "my_window"

This alone makes most of it work, and it looks great, just like I want
it. However, I have this GtkScrolledWindow with a Viewport on it.

I tried to make the Viewport use the same background as everyting else
using this:

  style "transparent"
  {
     bg_pixmap[NORMAL] = "<parent>"
  }

But it becomes black, I suppose it's because its parent the
GtkScrolledWindow has no background and I actually want it to stay that
way.

Is there anyway to make this GtkViewport to use main_window's
background?

Also, I see that this method tiles the background image, is it possible
to scale it instead?

TIA

-- 
Luis Oliveira
luismbo AT netcabo DOT pt