The Enameler introduces colour possibly by utilizing coloured glass or by adding pigments into the glass before firing. Once the glass melts and flows, it cools right into a challenging, smooth coating above the substrate. 'Much less is always far more,' says Jennifer Verruto, founder and CEO of Blythe Interiors. https://www.watchesworld.com/exploring-the-aesthetics-of-dial-design-and-decoration/