Originally Posted by
Stanislaw
Threads in the JP forums have speculated the 'T1' 'A2' 'B3' A4' 'C5' 'A6' 'T7' 'H8' might mean T=Tank, A=Attacker, B=Buffer, C=Caster, H=Healer and the numbers correspond to party order (with you being 1 and PC2~8 being 2~8). Under the new UI, it just might be possible to assign specific roles to each party member and quickly see which party member does what in any given party.
As for the bars right next to it, we speculated that they were 'hate' bars - the higher they are, the more hate you have. If it's any proof, you'll notice that T1, the tank, has his bar full and the mob is looking directly at him.