To add to the experimentations, following this color theory:
Apple +R -G -B
Pear -R +G -B
Berries -R -G +B
Plum -R +G +B
Valfruit +R -G +B
Pineapple +R +G -B
*Please note that for this, I am only counting feeds that result in "New Feather" confirmations*
Feeding my lavender purple Chocobo a Valfruit, under the assumption that the valfruit will increase red and blue values. Desired result is iris purple(*Hypothesis that if result is not desired, reversal would be obtained by feeding a pear.*): Results pending
Feeding Goobue grey chocobo 1 valfruit, plum, and berry. Intended result is to bring chocobo from grey to any shade of blue. Results pending
Feeding Blood red chocobo 1 berry, Intended result is Dalamund red. Results pending.
FC leader fed 5 Berries from desert yellow. Resulted in Ul brown. Fed 1 pear, intention to increase blue hues. Results pending.
Suggesting Valfruits and apples to get a millicorn yellow to a shade of red. will report amounts and results at a later time