Hyla versicolor: As the scientific name implies, gray tree frogs are variable in color owing to their ability to camouflage themselves from gray to green, depending on the substrate where they are sitting. The degree of mottling varies. They can change from nearly black to nearly white. They change color at a slower rate than a chameleon almost a year later.."Franco" is "Mamma Franco" or just Mamma Frog" She is much larger than when this was taken.