[otrs] Colour of Ticket View

Hi! After Changing some Settings like Ticket Types, Poriority, Queue-Names etc the Colour of the Info-Box on the right Side changed from grey to blue. Thats now the case for all Priority levels. I don't like that, how can i change it back!? Or how can i define to have a red backgroud for high Priority? http://img187.imageshack.us/img187/136/otrssi9.jpg Thank You! Thomas Büchling