1. Open up “System Preferences.” You can do this by clicking the “System Preferences” icon on the toolbar (it looks like a gray box with a gear inside of it) or by selecting the Apple icon in the top left corner and then hitting “System Preferences…”

2. Select the “General” icon. It should be in the top or second row, depending on your macOS version.

Step1 DarkMode
Open the “General” menu. 

3. Choose the option that you want from the “Appearance” menu. 

  • “Light” uses the light appearance. 
  • “Dark” activates Dark Mode. 
  • “Auto” activates light mode during the day and Dark Mode at night. Note that the “Auto” selection is only available for macOS Catalina.
DarkMode Step3
The normally white and gray General menu, now in dark mode. 

When you click one, it will activate immediately to show you what it looks like. Feel free to switch between them as much as you want.