Group
box
2 images define a group box : the border part and the caption part.
The border image compile 2 states : normal and disable state. Each image is like :
S : Stretch
A : Apply without resizing
unit is pixel
The caption image compile 2 states : normal and disable state. The height must be 14 pixels. It's applied on the top part of the group box.
Note : The caption part is excluded from the border part.
It allows for instance :