[MarkFL]

Try changing the StyleVar labelled "body_color" (in the "Global" group) to

#FFFFFF

To do this follow:

AdminCP -> Styles & Templates -> Style Manager

Locate the style for which you wish to make this change, and with "Style Variable Editor" selected, click the "Go" button.

Scroll down and locate the "Global" group, the within that group locate the variable "body_color" and click on it.

Within the input field labeled "Color" enter:

#FFFFFF

and click "Save"