We are refinishing our pool in a few weeks with new waterline tile, new water feature spouts and Wet Edge Signature Matrix Tahoe pebble finish. We picked a 6x6 porcelain for the waterline but wanted some bling for the raised planter and to line the sunshelf, swimout and steps. I found a beautiful glass 1x2 that goes beautifully with the colors in our 6x6 tile. Has anyone seen or used both porcelain and glass in a pool build? With the raised area being in the center of the pool, we thought it would create a focal point if we used glass on it. Thanks! Pics below 
