Let us look at DETAIL & SCALE's title COLORS & MARKINGS OF THE A-7 CORSAIR II, PART 1, the ninth volume in their COLORS & MARKINGS SERIES. It is an information packed book for A-7 modelers and enthusiasts featuring an excellent selection of photos and original artwork, and authoritative text.
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/colors-markings-of-the-a-7-corsair-ii-part-1-usn-atlantic-fleet-test-evaluation-facilities