Color choices, the bane of some modelers. To be frank, I have seen German camo schemes with purple and green, but in the case of the D.I, that is, I believe, simply not correct. Jack Herris's Aeronauts book shows the early models in a three tone camouflage, and the late production models in a two tone of a faded medium green and a medium brown. Since the plane is a later production model, the two tone will be the selection. The Nexus card has the brown a bit ...