How to turn on WhatsApp's dark mode color scheme on a computer or mobile device

You can enable WhatsApp's dark mode on the Android, iOS, and Windows app, as well as on WhatsApp's web browser client.

How to turn on dark mode in Discord and give the app a sleek new look

You can turn on dark mode in Discord by going to the desktop or mobile app's "Appearance" menu and selecting the Dark theme.
AZ Central

Dark mode or light mode? What you need to know about your phone screen preferences

QUESTION: Are there any reasons not to use dark mode on my smartphone all the time? ANSWER: The default display theme for smartphones and computers is generally a white background with black text, but ...
MacRumors

iOS 18: Make Your iPhone Home Screen Icons Dark

In iOS 18, iPhone apps have both Light and Dark color options, making it possible to match the color of your icons when you have Dark mode enabled. Keep reading to learn how it works. Apple's built-in ...