Hungarian camouflage and Markings in WW2
Where to start? There's so much to say. Some color profiles were already posted above. I would recommend Squadron-Signal book (see the attachment) for anyone interested in this topic. I'm sure there are plenty of other books on the topic, but this is the one I can recommend out of personal experience.
I'll try to be short for the purpose of this thread...
National Insignia
Arrowhead national insignia was used prewar and in early war years. Arrows in Hungarian national colors (red-white-green) were painted on the main wings, while tail surfaces (both vertical and horizontal) were painted in the same colors representing Hungarian flag.
Later in the war (around the time of Barbarossa) arrowhead insignia was abandoned in favor of black square-white cross markings, still accompanied with national colors on the tail. I believe this was done at the German suggestion. Towards the end of war insignia was simplified by leaving out the white color of the cross and national colors on the tail. Sometimes the black square was reduced to the outline of the cross.
Camouflage
Some Hungarian aircraft had distinctive indigenous camouflage, but mostly aircraft wore camouflage of the countries from which they originated. Bombers of German origin in Hungarian service (Ju 87, Ju 88, etc) kept original German camouflage pattern. Same can be said about Messerschmitt Bf 109 fighters. Aircraft of Italian origin sometimes kept Italian camouflage colors (Reggiane 2000 for example) or were re-painted (like some CR.42s).
Hope this helps a little. I'll post some pictures and profiles later.