Blueprint book with seven-segment numeric displays in three variants: small, large, and classic large (which resembles a typical LED 7-seg display). Displays the value of a signal (or the sum of multiple signals). The color of a display can be changed with a color signal through a separate input.
Each blueprint consists of a single-digit display. Tile it to the left to display values with multiple digits. The tiled displays will connect automatically and form a multi-digit display.
For better legibility during the day, place on refined concrete. Any mod that makes unlit lamps darker is also recommended.