Is your color code 031 or 012? They're pretty similar, but 031 (which I think is what you've got) isn't Cygnus white. There's some controversy and uncertainty on the color relationship between the top and body of trucks that are 031 white. When I redid mine, the top appeared to be really close, if not the same as the body. I couldn't be certain though as the top color ages differently than the body. I chose to go with the same 031 because a two-tone-white vehicle didn't seem (to me) to be the most right choice. Some have gone 031 on the body and Cygnus on the top.
Anywho, I could never figure out that grayish-tanish color on that bezel. I painted mine silver, but I'd like to put it back the way it was, someday.
True cygnus is a really cream colored white.
I'm pretty sure most bodies are 031 white or 040 superwhite. I'm not 100% on year differences for those colors.