[dcb]

I'm happiest with the green, folks have retrofitted other displays though.

The standard display is transflective, meaning that it has a backlight and can reflect ambient light too so is still readable, but moreso with a tinge of backlight.

I've only seen white letters on blue or white on black, not black on blue. Blue is about the worst color for nighttime use fyi, and red makes me think my oil light is on.