Each color company names their unique color what they want. So for instance Paparazzi is green sparkle and comes from Glass Alchemy, while Stardust is a blue sparkle and comes from Trautman Art Glass. If you make the color, you get to name it what you want. Sometimes the name indicates the color. For instance, paparazzi is about photos of celebrities, they make a lot of money, and money is green. The photos taken sometimes have a flash, this is the sparkle. Have fun in life!