Truly custom! This Houston family wandered into our little shop and fell in love with our lighting. They already had a very large fixture that they loved.....but not the biggest fans of the glass. So.....we designed something specifically for them and sent these to them. All they had to do was take off the old shades and put on the new! Aren't they beautiful?! So this is the most complicated of color applications that we have....with the exception of maybe one other style. All of the color appears to be random and to some degree it is. Once applied the final layer is clear glass which gives dimension and sheen to each piece. Absolutely beautiful.