According to the FAQ's on this site, '67's were black centers with argent silver outer sections.
The list '68 colors look strange to me with a silver center. I know I have seen that but most '68's I've seen are black.
I bought 2 NOS grills in 1998 and both had black center's with argent silver center main ribs. One was charcoal on the outer edges, the other argent silver. I repainted them both charcoal because I thought it looked better.
The only trim option that affected the grills is if you got a 400. Then they bolted a chrome "hockey stick" over the center rib.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI