It's amazing how much can happen in one day! Great to see others join in.
I personally do not know any book which specifically deals with colouration or symbolism specifically with Marseilles decks, though a few deal with the Wirth deck (which, though based on the Marseilles, deviates from it, and provides the iconographic 'bridge' between it and the later Waite/Colman-Smith deck).
It should also be remembered that Marseilles decks have peculiar colours depending on their printer, and mild discrepancies in representation.