[Plugin: Ultimate Coming Soon Page] Box behind content?

I see in the demo of the Pro version that you can put a “shadow box” behind the content if you have a background image selected. Can you do this with the free version?

Also, it would be great if you could vary the color of the box, or at least have one dark and one white background box.

Thanks.

http://wordpress.org/extend/plugins/ultimate-coming-soon-page/