custom styles and box background.

Hi, when creating a vgui box and assign a custom style to it, I loose the standard background image the box has.

Under the customstyle/normal/background I can’t find a box texture, so how can I get the box backgound back?
(I want my style just to use a different font size)

Also if I would change one of the standard setups like button/normal/background/button to some other texture, there is no way to set it back to button?

Heres a download for the default gui skin:
http://unity3d.com/support/resources/assets/built-in-gui-skin

Thank you.