Not showing up as Contributor in active users box

[Lally]

This is quite trivial but I was wondering why my username does not show up as purple in the active users box, even though I am a Contributor? At least, that's what it says in my posts under my name and I'm pretty sure I have donated before...

[sniperewolf2]

Go to User CP -> Group Memberships
You can choose if you want your name to appear purple or not from there

[Lally]

awesome, thanks