Gallery Glass makes it easy to create the timeless look of sparkling stained glass windows, glass art, giftware and more. Crafters love its beauty and the fact that most projects can be finished in two quick and easy steps: outline & paint! Gallery Glass Window Colors dry to a textured finish that simulates the look of cathedral stained glass. Use on windows, glass, mirrors, plexiglass and styrene. Paint can be applied directly to both vertical and horizontal surfaces. Non-toxic, waterbased.