We are considering different kinds of plaster for the pool. We are looking at Pebbletec in black onyx for a dark Zen looking pool. Any thoughts on this product - positives or negatives? Others people have used to achieve a dark look in the pool? I am new to the forum, building a pool, just after gunite stage. Our contractor left us high and dry so we are starting over now, looking at bids. It's terrible in that we are left without a contractor, but now we can sort of start over and reconsider every decision we made with the old contractor. (Trying to stay positive). Would appreciate any feedback.