@InfraBlue,
I know 2 guys who do these "forensic" reconstructions of creatures from their fossils. Its amazing how they collaborate, especially in the areas of feathers and colors.
Usually, feathers, when they appear in big enoiugh clumps agreeably had some degree of iridescence, so thats where the wild hues come in.
HOWEVER-who the hell knows for sure. Theres still a pitched fight on how feathers developed and whether many dinosaur groups were or were NOT warm blooded.
Theres the "tuna fish school" that believes, thgrough evidence from bone cross sections, that only some genera of dinos were warm blooded (hence the name Tuna SChool since tuna and their family are only one of about 4 genera of fish that are warm blooded)