How can I add colors by usergroups to the username?

[thunder_sti]

1- I want to display the usernames under the CURRENTLY ACTIVE USERS BY COLORS (see link below)
and

2- Underneath the currently active user box, have a legend of the colors.
For example: RED-Administrators Orange-users, etc, etc,,(see link below)

Here is a link that displays a reference on both questions;

http://forums.extremeoverclocking.com/ (go to bottom of page)

Thanks..

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