It seems indeed like the decals in front of the windscreen are V-shaped, with the center a light color, and the sides darker. Seems like the ones on the sides are also the same 2 tone, darker patches on the edges and center part lighter. Same on the wing, the part where the wing mount points are seems also to be the lighter color. Seems the wing sides use a decal almost the size of the wing sides, with the darker color on the rear, and the rest the lighter color. Maybe the decals that are on the wing sides, the "Motor and Machine Tune" and the Bridgestone ones can provide a key towards the colors used. I think the body is white as it's lighter than the wing sides, which is also a light color.

Maybe contact Kyosho, and ask if they have some color pics? This color/decal scheme is starting to grow on me. I've sent a mail to the local Kyosho distributor, as the japanese website reveals no contact info, but refers to local dealers.