Just a different look to the group window. It functions like the standard one does, but just look different (easier read-out).
If there's enough asking for something specific (debuff relocation, changes to graphics, etc.), I will look into making it happen.
How to change buffs shown:
If you want to change the type of buffs shown (buff, debuff or both) locate the file "TeamListEntryView.xml" in "\cd_image\Gui\Customized\Views\TeamGUI\".
Open the file with a normal text editor and at the bottom you'll find this:
<!--------------------------
Other filter values are:
"friendly"
"hostile|friendly"
---------------------------->
<!--------------------------
Other filter values are:
"friendly"
"hostile|friendly"
---------------------------->
A few lines above that text you will see a line like this:
filter="hostile"
Just change
hostile to one of the two other values.
Follow the individual addon's installation instructions.