in dark conditions 5% background light is too strong. why not add 1%, 2%, 3%, 4%?

in dark conditions (for example in your bed) 5% background light is too strong.if u wake up and want to see the time, it's really too strong.

why not add 1%, 2%, 3%, 4%?

an other benefit, if u choose 2% for always on display, it will reduce the power usage, but keep a good visibility in dark situations