IIRC BS4800 doesn't have colour names, only letter/numbers, so any names are ones that manufacturer's have invented.

I wonder about the 10B21 description for camouflage beige, although it's possible the standard has changed

Innominate :}

Dave

It has, last change was in 2012. As for names of BS colours, never really looked in to the subject but this site has a short history that explains the roles and history of BS381/381C/4800 and others.

Colour Systems - Part 2 - British Standard Colours - C P W Stonehouse : C P W Stonehouse

Have seen a photo of the WWII invasion stripes being applied with a broom. Time was of the essence I guess.

Re smoke, Francis Chichester in one of his books takes a NZ P-3 pilot to task for running his engines too rich when the aircraft overflew his yacht.