Funny that you should pick the year 1936 - that's when everything began to change. The correct answer to your question will depend more on which aircraft you're modeling.
Before 1936 the top (only) of the upper wing was Orange Yellow. (Lemon Yellow was a color used for unit markings.)
After 1936 the Orange Yellow was wrapped around the leading edge of the wing for about 5% of the chord.
Before 1936 all fabric surfaces were painted with aluminized enamel; all metal surfaces were painted with Aircraft Gray enamel.
After 1936 fabric surfaces were painted with aluminized dope; metal surfaces were painted with aluminized lacquer.
Struts, being metal, wore Aircraft Gray enamel or aluminized lacquer.
And that's not even talking about flying boats...