GtkReliefStyle

Enums

Value	Symbolic name	Description
0	GTK_RELIEF_NORMAL	The default relief style for a button.
1	GTK_RELIEF_HALF	Sets the shadow around the button to GTK_SHADOW_OUT until the button is pressed, and GTK_SHADOW_IN when it is. This is currently the normal relief style for a button.
2	GTK_RELIEF_NONE	Sets the shadow around the button to GTK_SHADOW_NONE except when the cursor enters the area of the button, meaning that only the contents (e.g. the label) of the button show until that point.