Abstract: A graphic display panel for displaying, monitoring, and controlling conditions of a process plant, the graphic display panel including a graphic display sandwiched between translucent support surfaces, and permitting quick and easy rearrangement and repositioning of a lamp assembly associated with the display. The lamp assembly is selectively removably attached to the rear surface of the panel in juxtaposition with a graphic symbol in the graphic display, and illuminates only the localized region including that symbol. Attachment of the lamp assembly directly to the rear surface of the translucent panel permits accurate positioning of the lamp assembly in juxtaposition with a corresponding graphic symbol visible from the rear surface of the display panel.