MacOS includes a Dark Mode option that works across the entire system, from the dock and menu bar to all of your apps.
Here's how to turn on Dark Mode:
- Choose System Preferences on the menu bar.
- Select General.
- In the "Appearance" section at the top of the window, click the "Dark" option.
Those are the only steps required to enable Dark Mode. If you want to turn it off again, follow the same steps but this time choose the "Light" option.
While in Dark mode, the dock, menu bar, and all of your Apple apps, including Safari, Mail, Calendar, Notes, the Mac App Store, Messages, and more will feature darker colors and themes. Dark Mode will need to be built into third-party Mac apps that don't already offer a dark option when macOS Mojave is released.