Someone in another forum asked about this same paint job.. with the colour shift so I'l reply here and paste..
Sorry this isnt Brodak Kandy - but its similar about Kandy paints.
Here are the Checkers at the rear of the Model. Starting Black - Colour shift to Dark Green in light.
Wing Red colour shift to Pink
Same as the Flaps Black Checkers Color shift to Blue
This effect is done adding to the clear as mentioned I used Kameleon Pearls and added it to the clear before final spray.
Description: The color changing effect of Kameleon® Pearls are just as dramatic as the Kameleon¿ Base coats Available in four color changing pigments, they are in dry form and may be added to SG-100 Intercoat Clear or any of our acrylic lacquer or urethane clears. The pearls can make a vehicle appear to be different colors to people looking at it from different angles. Use these pearls to add an exciting flare to your artwork.