How did the green coloration of the tree frog tree frog evolve?

This mutation in the form of the appearance of a green color began to appear in the tree frog, first at the phenotypic level. Then, under conditions of survival, this color helped the frogs remain unnoticed by the predators that hunted them. Thus, as a result of natural selection, tree frogs have evolved with a green body color. Green color even now helps frogs in hiding from enemies, especially since for the most part they live in areas where there is a lot of vegetation.