Good news for users they changed from Navigon to Garmin and all people they don't like the awful pink worm for active route (like me :D):

With last firmware update from January on the 2012 nuvi series (e.g. 2495, 2595, 3490...) has been added Navigon Map Theme. This theme has more discreet colors and an dark orange line for the active route instead of the pink Garmin worm.