Subtitle Legibility Plate

technique, notably articulated by Walter Murch, for ensuring subtitle readability by placing a dedicated graphic layer (typically a black solid or gradient) behind the text. This plate separates the text from the underlying video, preventing legibility issues caused by complex or bright backgrounds. The process is not merely technical but aesthetic, involving nuanced adjustments to the plate's position, size, and opacity until it "feels natural" and unobtrusive.