[otrs] Escalated tickets - different colours ?

Hi, Is it possible to somehow distinguish escalated tickets with different colours ? I see that tickets with high priority (5 for example) have different - pink colour so are easy to recognize. It would be nice if we could do that with escalated tickets as well. Another question : in queue definition, I put escalation times, and set notification to 90% . My agents have all notifications turned on. But when tickets escalate, none of us gets any notification ? rgds, Dejan