What is one of a row of lights in the front of the stage in a theater, etc., and on a level therewith. Before the footlights, upon the stage; -- hence, in the capacity of an actor called?

footlight — One of a row of lights in the front of the stage in a theater, etc., and on a level therewith. Before the footlights, upon the stage; -- hence, in the capacity of an actor. (Webster's 1913.)