Hi Jan,
I'm very interested in a decals sheet for Russian Il-10.
Audrius has already posted a link for color profiles from that monograph, it should include 4 profiles for ww2 camouflaged planes and the silver one you needed.
There is some uncertainty about the camo scheme: the Russian profiles show green/dark brown scheme, while I am suspecting that it utilized a variation of the standard three-shade camouflage for Il-2s.
To tell the truth, only some of the available photos support a 3-shade camo, while the other ones give the idea of two-shade, but the darker bands look the same.
All what I know, including all photos and my deductions, is at the link below.
http://mig3.sovietwarplanes.com/il10/camoww2/camoww2.htmA possible explanation could be found here
http://vvs.hobbyvista.com/Camouflage/NKAP_Template2.phpbecause the use of darker AX-M colors could mask the difference in shade, well visible with AMT paints.
I would be glad to find more on this topic, a camouflaged Il-10 would be one of my favorites.
Massimo