Do you mean the shadow on the inside of the screen? It's there and they should be identical.. Unless I'm not seeing something.
Can you show me how I would be able to disable a background? All I know is there's an automatic crop to the screen in the tab video options. If I could do that, then I wouldn't need to make 2 versions of everything and change the screen bounds so that would be great. I didn't know it was possible.