IOS has had dark mode for over 2 years. ISN has a battery drain issue for over 6 months. Once again today my phone from 100% to 0% during a home inspection. APPLE STATES On iPhones with OLED screens (typically models X and newer, excluding the iPhone 11 and XR), switching to Dark Mode can reduce power consumption by an average of 42% at 100% brightness.
In case you don't know how to do it go here https://developer.apple.com/design/human-interface-guidelines/dark-mode. As the app is only blue and white it should only take an afternoon to change the Blue to White and the White Back Ground to Black
Here is a YouTube on how to do it https://youtu.be/DB5uNhIea-o?si=yDqpLN4DsOCwKB-m
Come on guys show us your skills this is how it should be