Redmine

Hi

Before I add a task priorities, the "urgent" (task priorities) one appears in black and with a red background. Now with the blue background. How do I get back to what I used to be?

I use theme "Alternate"

thank you

Environment:
Redmine version 3.2.0.stable
Ruby version 2.1.5-p273 (2014-11-13) [x86_64-linux-gnu]
Rails version 4.2.5
Environment production
Database adapter Mysql2