1967 Barracuda Interior Help - Paint and Carpet

I'll reply to my own questions in the prior post (lol) after doing more research and decoding the IBM data card:

With the UBS code of B8_ (third spot blank), it seems that:
B= upper door color of black
8= exterior paint is buffed
Blank in the third spot= no accent stripe. Line 60 ("Stripes") of the data card is blank so this seems confirmed.

I'm still not sure what "High trim grade" really means.

Steve