Abstract: A light-transmissive trim plate and mounting apparatus for being received in a recessed lighting fixture installed in a space over a ceiling, in which a light bulb, being operated for light, communicates light through the trim plate for providing an ornamental illuminative effect around a perimeter of the opening for the recessed lighting fixture. The trim plate comprises a translucent light-transmissive trim ring defined by a cup having a first open end and a second open end with a flange extending laterally around the first end. The trim ring defines a perimeter ring conforming in shape to an opening of a recessed lighting fixture. A support engages the trim ring in the recessed lighting fixture. The trim ring covers a gap between the recessed lighting fixture and the ceiling while providing an ornamental illuminative appearance during operation of the light bulb.