How To Change The Color Of Your Battery Percentage. Hide the transition text containing the percentage charged. Just click on the battery bar icon to change it to show the remaining battery percentage.

Go to Settings Battery and turn on Battery Percentage. Show battery percentage on iPhone 12 home screen. I suggest keeping the original colors because they are well optimized for each battery level.
To conclude in steps.
Connect to charger enable Low Power Mode change background color or drain battery below 10. On iPhone SE 2nd generation iPhone 8 or earlier iPad and iPod touch 7th generation you can see the battery percentage in the status bar. As the power level of your iPhones battery decreases the color of the battery indicator will subtly change to represent the appropriate range of remaining charge. Just click on the battery bar icon to change it to show the remaining battery percentage.

