Used to change the appearance of an outline typically provided by a gtk.Frame
Note that many themes do not differentiate the appearance of the various shadow types: Either their is no visible shadow (GTK_SHADOW_NONE), or there is (any other value).
No outline.
The outline is bevelled inwards.
The outline is bevelled outwards like a button.
The outline has a sunken 3d appearance.
The outline has a raised 3d appearance.
Used to change the appearance of an outline typically provided by a gtk.Frame
Note that many themes do not differentiate the appearance of the various shadow types: Either their is no visible shadow (GTK_SHADOW_NONE), or there is (any other value).