Editing colour in a certain section of the background in Apollo Theme

[Existant]

Greetings, here is the editing I have done so far with the sections I can find to edit.



And I can't find where to edit that white background to black anywhere?

I want it to look like this



Can anyone point me where to edit that seciton of the site to black from white please?  It's the last thing I need to edit before I make the forum live.

[Deaks]

have you checked to see if those are image files?

[Existant]

Would that whole mass white area be an image file?

It's the Apollo Theme btw