A flash module comprises an optics portion that includes a base plate, a light guide on a first side of the base plate, and a lens element on a second side of the base plate. A casing is attached to the optics portion and defines an interior region in which the lens element is located. An active light emitting component is mounted within the casing. Sidewalls of the light guide are coated with first and second layers of different materials. The second layer is a coating over the first layer and is substantially non-transparent to light emitted by the active light emitting component. The first layer can provide a predetermined aesthetic appearance and can be selected, for example, to match the color of the exterior surface of a device in which the flash module is to be integrated.