I have also red-green color blindness and it makes me really mad that a lot (like 90%) devices have a tiny LED that indicates if it is charged and the LED changes color from red to green when it is fully charged - I have to ask my kid or wife what color it is.

Please please, if you work in hardware, make it a red/blue or green/blue colors for empty/fully charged, or make it blink, anything, just not tiny 1 pixel size red or green color (or amber/yellow, they are equally hard to distinguish for people like me from green).