Private message status CSS class, where it is located?

 
Petri Kosunen
 
Avatar
 
 
Petri Kosunen
Total Posts:  66
Joined  05-11-2014
 
 
 
11 November 2014 08:34
 

I want to put green color for already read private messages and red for the unread message font-awesome icons but cant find what file/line is handling the statuses.
Can you light up a bit so I can add colors for them, thank you.