PHP-GTK: colors & styles

[greenbirdweb]

I've recently picked up PHP-GTK and am loving it so far. I haven't figured out how to change colors of widgets the way I'd like. It doesn't seem to work the way I thought it did. I would like to change the background of one widget and leave the rest alone. If anyone could help, I'd appreciate it.

Here's my basic layout:

Window
|-->GtkVBox
      |-->GtkMenuBar
      |      GtkHBox
             |-->GtkFrame
             |      GtkFrame
                    |-->GtkPixmap  (white background on image)

I would like to set the background behind the image (the 2nd frame) to white, so that the image blends right into the frame. This is how I thought it worked:

$newStyle = &new GtkStyle();
$newStyle->bg[GTK_STATE_NORMAL] = $newStyle->white;

$frame2->set_style($newStyle);

Doesn't seem to work, though. Any ideas?