Storefront Designer-Wrapper Color

Hello,
I just picked up Storefront Designer because adding and changing wrapper color around the page content was listed as one of the features, but I can’t seem to find where to change said color. I’ve modified the layout to include the wrapper but the only color option I seem to be able to find is for the background, which changes the color for everything I see on the screen. I have another ticket open with WooThemes but I thought I would also pose the question here to see if anyone knew (WT takes several days to answer tickets). How do I change the color of the wrapper using Storefront Designer?
Thanks