Phosphor Screens

Before flat panels, images were painted by an electron beam onto phosphor, and the glow lingered. A CRT in a dark room bleeds light outward from every bright line, throws horizontal scanlines across curved glass, and shows dust you only notice when it is switched on. This template renders that. Optics, glow and grain stay locked across all nine versions. Three short keywords change the frame: the display content, the phosphor colour, and the room.