Module Boxes User 7-11 Change Background

Even though the modules settings are _dark these boxes are showing up as a creamy white background. I would like them to be using the same background as User 4-6.

Can someone please tell me how?

Hi
Suffix should worked. Try write:" dark"

No sorry that doesn't work...

Can I edit it in CSS template or something?

Any help on this one?

I had to edit:

template_css.css

div#wrapper_bottom{
border: 1px solid #e6e6e6;
background: #f7f7f7;
}