1)One UI needs Dynamic Wallpapers which automatically changes when switching between Light or Dark Modes.
(1.1) Also, wallpapers which changes with according to Daylight.
2)Furthermore I offer a concept of automatically switching to Light/Dark Mode UI based ambient light conditions. The data from ambient light sensor will be used to make this feature work. For example, if the sensor detects you are Outdoors & under direct sunlight, UI automatically switches to Light Mode.
2.1)Also, user can set a specified brightness level i.e if brightness falls below a certain level, dark mode will be turned on automatically and vice-versa for light mode.
