Lets talk 63FS 56FG P-47 M colours briefly.
Firstly, unless a researcher can talk to someone who was actually based at Boxted in early 1945 and either flew or painted the 63rd's P-47's personally then we are never going to know the exact colours of these fantastically painted machines.
The huge debate about the colour of the 61st FS M's has arisen from interperatation of b+w photos of varying quality and exposure and by people guessing what they THINK the colour was.
I have recieved these photos of a 1:6th scale model of "Fireball" the P-47 of Lt Philip Kuhn. This excellent replica was built by Dave Gianakos, who has done an enormous amount of research into the 56th. Its said that the blues are extremely close to the actual colours used by the 63rd FS.
Notice how the light has resulted in the colours looking very different in the photos, which were both taken on the same day.
To sum up, its highly likely that we will never know the exact colours used.
If it looks right,,go with it.
However, if anyone knows of the crash site of one of these "M"'s I'll meet you there with a metal detector!