Laurie Wrights articles on the Aust. wartime vehicle paint , written by a guy who was there and noted things down, is eye opening . He indicates that the official orders re: painting were ignored to a large degree and it was common to see vehicles in the same unit finished in different theatre colours . If a unit OC was not that fussed about paint then so be it.
http://anzacsteel.hobbyvista.com/oth...siecamlw_1.htm
All this pedantic talk of colours means nil in terms of a tropical environment , mainly because the paint supplied to the DD back then was crap and made to a minimal standard.