Personally, I think the shade of blue we see for French units is rather bright, or deep in their shade. A trivial matter I suppose, but all the other nations have a more washed out or ‘earthier’ shade of their color. The US is not bright green, the Russians are not “Communist Red”, the Japanese are a more mellow orange than, say, an actual orange is, the British are pretty low key too. The Italians just look like dirt, which looks fine to me. The French, on the other hand, look like cotton candy out there.
Like I said, fairly trivial though. More trivial than map errors certainly.