The term 'theater hangings' refers to the use of scrims, which are lightweight, translucent fabrics used in theater and film production. Scrims are hung from the ceiling or walls of a stage or set to create a variety of effects, such as diffusing light or creating shadows. They can also be used to create a backdrop for a scene or to hide certain elements of a set. Scrims are an essential part of any theater or film production, and they come in a variety of colors, sizes, and textures.