I've been playing SLB more days than not, for over a dozen years and I still don't know if there is any special difference to us team managers, between pitching fatigue percentages shown in blue vs. those in green.

Any help here?

I understand that pitching fatigue for recent usage is a lot less dangerous-to-catastrophic than overusage fatigue, but what about blue and green?

It's just a visual / UI thing. Nothing magical / different happens when they go from 90 to 89 as opposed to 91 to 90

Thanks Oz. That's funny. There are numerous points at which SLB is uninformative; about this, they're actually mis-signaling. So much of it all wraps around the matter of pitching fatigue. I try to warn newbies about in-game pitching fatigue in OL's and 10-gamers. It would be so easy and such a good marketing move, not to offend customers, for WIS/SportsHub to explain that clearly in their Help section.