The main background can be changed under the Main / Layout tab. There is an area for the main body background there as well as each row of the template.
There is no option for the secondary background. Changing the main background color only changed the top.
This is an image of the transitionhttp://puu.sh/mxBAy/5bc0eb31d9.jpg
Another example "Contact Form"http://puu.sh/mxBET/be4f347386.png
It goes from the scrolling image, to complete white. I am looking to change the white. I have changed ALL values in "Main/Layout" to black to test, no change.
The part that changes is "top_area_bg", where as the area below it is un-editable.