Huawei
Enable or Disable Dark Mode auf Huawei
Dark mode replaces bright white backgrounds with a dark theme across the home screen, settings menu, and most system apps. It reduces the amount of light your display emits, which can make the screen easier on the eyes in low-light environments and lower power draw on screens with individually lit pixels.
On EMUI, the setting lives in the display options. Go to Open the settings ➕ Tap on Display & brightness ➕ Activate or deactivate Dark mode. Toggling it here switches the appearance immediately across supported apps.
If you need faster access, the same toggle is usually available from the quick settings panel, so you do not have to go through the full settings menu every time you want to switch between light and dark.
Not every app follows dark mode automatically. Apps with their own theme controls may need a separate setting inside that app, and some third-party apps ignore system-wide dark mode entirely. If your battery life does not noticeably improve after enabling dark mode, keep in mind the effect depends on your display type and how bright you normally run your screen.