IIRC, felines have limited color vision and excellent BW vision.
I don't know about the vision of arboreal snakes.
Bear in mind that camouflage is as important for hunters as it is for prey. perhaps more so.
Bear in mind also that I am addressing the earliest advantages of the earliest adaptation of scales into fringed (slightly feather-like) scales, that I am NOT addressing the varied uses of much later adaptation of fully-developed avian feathers into flights, plumage, and sexual display exaggerations.
Yes, I know. It was just an interesting unrelated thought.
Since I wondered, I googled and found a site "preservation station" which stated felines are color-sighted. Another stated small cats aren't, specifically the Lynx and Bob Cat.