Berries and shrimp evolve colors

[Niche fan]

Eating one kind berry for a few generations can change the color of the [animal / berry paw] to the color of the berry, possibly having different color berries on different islands. Maybe they have to evolve / adapt the color of the berry on each island or they couldn't eat the berry due to intolerance similar to lactose intolerance.  Also Flamingo's are pink because they eat shrimp, so think if generations were to live off of shrimp they should be pink.

[ARosefromPluto]

This is an interesting idea, but, not one that I'm too interested in. any people work hard to set up a particular look for their species, and may get upset if their colors suddenly shift because their tribe ate berries. I personally would also be annoyed having to adapt to new berries every island while traveling in story mode if the intolerance occurred.

 

Maybe the idea would be better if there were a specific gene that can be bred in and cause this?