Is what you are asking how to make the page background another color? If so you go to the stylesheet.css file in your template and look for:

Code:
BODY {
  font-family: Tahoma, Arial, Helvetica, sans-serif;
  font-size: 10px;
  margin: 0px;
  color: #FFFFF1;
  background-color: #080808;
}
Change the background color to something like #ffffff which is white.

It's going to cause some problems. You won't be able to see the white text and you are going to want to add background colors to some of the elements.