This polished pool finish is designed with mostly black pebble and accented with a sizable amount of vibrant blue, green, and red glass along with a generous amount of shimmering ocean shells. Hanna Beach Treasure is a perfect finish for those that desire a reflecting pool. Hanna Beach Treasure is in the black bottom color range. The watercolor hue cast by black bottom pools can be either blue or green. Because of the intense color, they are highly influenced by their surroundings and sunlight.