Yalla Arddy? An awful lot of kit in the Harmy was coloured green. As Quartermaster to a C.C.F. contingent, we had shovels, pickaxes, folding shovels, masts, tripods, jerry cans, you name it, green. As to why? That pale pickaxe handle (what you lovingly shaded it to) would stand out easily for a roving patrol to pick up and home in on. Similarly, shiny things were routinely 'dulled down'. I saw candle flames used on buckles (picked up and used by the producers of "Band of Brothers") and old, matt finish, lecky tape used on rifle barrels and the like. I think it was a procedure picked up from experience after W.W.2. Certainly, regulars from the late eighties onward, when I was participating, were adamant that not one pale thing, nor any shiney thing, made it out of the barrack room. That extended to ears, eyelids and palms on "Sneaky beakies" to locate 'the enemy'.
Sam
P.S. It became 'de rigour' to pack "Wet wipes" to clean yourself up at the end of a weekend or camp. Cammo paint resisted water - it had to, if you were rained on, you did NOT want to end up 'paleface' and be seen - so only the surfactant (or whatever) in the propriety bum wipes could restore you to normal pigmentation.