Hi Nigel.
I guess that you're talking about this one?
If so i'll quote Dan San Abot
"The Fok.E.V is in the top elevation with the nose pointing up. The slope of the streaking is \. From leading edge to trailing the slope spans two rib bays at the center portion of the wing. Number the wing ribs left to right from 1 to 26.
Wing tip to 1.75 is green, to rib 4.25 is brown, to 6.5 is green, to 9.0 is brown, to 11 green, to 14 is brown, to 16.5 is green, to 19.5 is brown, to 22.75 is green, to the wing tip is brown. On the under surface of the wing the Azin violet* (17A7), matches the mocha brown* (5F7), and the azure blue* (23A7), matches the True green*(27A7), on the leading and trailing edges. The wing is streaked with these stains,(not paint) much like the Fok.DR.I. The base color would be the birch plywood, pale yellow. After the stained dried, the wing was varnished to waterproof the wing surfaces. The Methuen codes listed are the specific colors listed on the Fokker E.V wing drawing by definition."
Sorry if i can't be more helpfull.
Cheers