Regia Aeronautica Aircraft Camouflage and Markings
Italy's aircraft coloration was largely determined at the factory level. Because of this, and the far flung advances of Mussolini's would-be empire, a very wide and colorful assortment of paint schemes for Italian aircraft existed. You could write whole books about them, and some people have. Sadly, I do not own any of those books, so I cannot recommend any. However, you can learn an awful lot about the Regia Aeronautica's colorful aircraft at the Stormomagazine website.