I set my smartphone in power-saving mode to extend the duration of the battery. I noticed that the colour code of the battery is wrong because counter-intuitive and not enough informative.
- white: normal mode
- red: battery saving
The correct colour code for the battery icon is the following:
- white: normal mode
- green: power saving
- yellow: under 25%
- red: under 10%
This colour code is much more intuitive and informative.
I hope this helps, R-