Feeds that "deepen" make that fruits color go UP in numbers not down. I can say this from personal experience. I posted this on page 188. Fed it nothing but Oh'gamarro Berries (deepen blue), and the blue value went up since I was getting UI Brown > Gobbiebag Brown > Shale Brown > Goobue Grey > Corpse Blue.

If Desert Yellow has a blue value of 87 like the chart says it does, I can't possibly have a color that requires a blue value to be near 135 if "deepen" feeds make me go down.

I've been using the chart and have been right on the money for saying which color will come next after I get the new feathers message for every single color so far. I'm not saying I'm 100% right, but if I am wrong, please explain how I got to Shale Brown from Desert Yellow feeding it only Berries. Shale Brown's red and green value are lower than Desert Yellow, while it's blue value is much higher and once again I only used Berries at this point.