different colours for groups

[notorious]

i was wondering if it was possible to have different colours for each group, and where i would add the codes for each colour

i have seen the online users colours but that only does the main groups and not ones i would like to add to the list, so if i used that one how could i modify it to include all the groups

[flup]

AdminCP > Usergroups > Edit >

In the usertitle field use:
<font color="xxxxxx">Title</font>