If you had any experience keeping sunfish you would know that they change color rapidly in response to stress, background color, light intensity, turbidity, etc.; juveniles are especially good color changers. It's not a different strain or subspecies, it's just a different color. And hybrid with what, exactly? There is no sunfish species that has all the characteristics of a green but is pale in color.
You are wrong whether you want to admit it or not. You don't know much about sunfish or any other fish, if your past posts are any sign. There's no shame in not knowing- but the best response is to try to learn, not to bluster and pretend to knowledge you don't have.