Create option for full width background color for sections within a page

[kevindherman]

Issue

You can't set the background color on rows of content inside SiteOrigin panels. What would it take to allow setting row level colors for Site Origin so that we can have a full width background color change.

Source
mini beta

[kevindherman]

@curtismchale you mentioned this potentially being more complex than it seems. If that's the case this is a nice to have.