Glad you asked. The Ribs on the Ailerons and Elevators are a shade LIGHTER than the regular paint. The Panel Lines are a shade Darker. The AF5Paint codes are 106 for regular Green, 105 for Panels, and 107 for Ribs. I had noticed this before but never tried out the equivalent in a BMP file.
Moral of the story is that BMP and R8 are NOT the same even if the shades are nominally the same.
I still need to figure out the Palette thing for other projects.