A lot of of the old incandescent cockpit warning/indicator lamps are being converted to LEDs these days, for the improved reliability. The old way to control the brightness vis-a-vis day/night was a two level dim/bright switching system, usually using a box full of printed circuit cards. Perhaps you'd like to try designing an ambient-light sensitive brightness control for warning/indicator lights to replace the Dim/Bright system and its heavyweight nest of PCBs?
Such a system works fine in my British built Japanese car, but we don't yet have such a thing in the far more expensive big Boeings.