http://dnn.gmss.org/ForScott/tabid/53/Default.aspx just for you  

For a base color skin it would work fine but when you get into some of the funkier skins that are released it causes problems. I've got an idea that I'll try today as a workaround.

Shouldn't really apply the container instead of the skin?

It depends, some people apply there background colours in the skin (e.g. body), that was why I originally had included the skin.

Maybe just an overridable background property, or another customisable style sheet would be better (so you could override the skin stylesheet)

That's the workaround I was going to try.  

Maybe a color-picker (if there's a free one out there) option?