OK, I've e-mailed the support folks there requesting that they make style definitions for each of the subtables for individual access. They currently have one for the contactTable, but no other sections. They do have id's for them, but accessing them is not possible as the # gets turned into a .. when you save it. Hopefully, they'll get back to me on this one as I feel it would benefit their community to implement this.
ID declarations in css start with a # (i.e. #ctl00_Main_ctl00_UserFriends1_pnlFriends{ background-color: ffffff;})
CLASS declarations start with a . (i.e. .contactTable{ background-color: ffffff;})
ELEMENT declarations are just stated plainly (i.e. body{ background-color: ffffff;})
ID declarations in css start with a # (i.e. #ctl00_Main_ctl00_UserFriends1_pnlFriends{ background-color: ffffff;})
CLASS declarations start with a . (i.e. .contactTable{ background-color: ffffff;})
ELEMENT declarations are just stated plainly (i.e. body{ background-color: ffffff;})