Actually Ducati referred to, in their literature, the amber and red areas on the tach as their "challenge zones." They put the amber section really low for the first 621 miles to attempt to challenge new owners to keep the RPM's in that zone, and actually more credit for the red zones. Its sort of like Dance Dance Revolution. You get more credits, in the ECU, for time spent in the amber and red zones, and a bonus round if you can continually bounce off the rev limiter.
So when you are "breaking in" a new engine, you should try and maximize your time in the higher RPM areas. After the first 621 miles the Ducati engineers moved the amber zones farther back on the tach display because the initial challenge period has ended. So make sure before the engine has a chance to actually seat rings, and instill proper wear zones, that you literally flog the .... out of it. Its really good for it. Thats why Ducati lowered the amber area on the tach. Its all in the manual in the Addendum marked "No fuckhead, don't run a new engine hard." Look in the index for the exact page number.
NOLA.