1967-1968-1969 Barracuda Rear Trim?

Yea what is the correct color. Were the colors based on different models? Were all of the Formula S's black?

1967 Silver Argent



1968 Body Color



1969 Silver Argent with Red surround



Were all of the Formula S black regardless of year?


And some are red:

Red 1968
https://classicsbysteve.files.wordpress.com/2009/01/68barracuda_rear.jpg