Nope, there's nothing wrong with the pool. Why do you ask? Oh, the color? No, no, that's fine. The pool's filled with Midori. It's supposed to be that color. Cheers!
P.S. While making sure that Midori was the green liqueur I was thinking of, I found this recipe on their website. June Bug? Mmmm, beetles. Drinkable beetles. How delightful.