Hello everyone

I've got a problem:
I'm creating my own theme and just changed the background image of the PreviewPane.
(Win7 Style Builder 1.4: Explorer & Shell -> Shell ->PreviewPane -> <1> -> <1>)
If I click on "Test" and open a window it looks like it should look:




But if I click "Stop Testing" and save the theme the PreviewPane is just white when I use the just saved theme....



I have absolutely no idea how to fix that. Can anybody help me please?