How to change dark mode in mojave mail

To change the dark mode in Mojave Mail on your Mac, follow these steps:

1. Open the Mail app on your Mac.
2. Click on the "Mail" menu at the top of the screen.
3. Select "Preferences" from the dropdown menu.
4. In the Preferences window, click on the "General" tab.
5. Look for the "Appearance" section and click on the dropdown menu next to "Theme".
6. Select "Dark" from the menu to enable dark mode.

Alternatively, you can also enable dark mode in Mojave Mail by using the "Dark Mode" toggle in the System Preferences. To do this:

1. Click on the Apple menu at the top of the screen.
2. Select "System Preferences" from the dropdown menu.
3. Click on the "General" tab.
4. Look for the "Appearance" section and click on the dropdown menu next to "Appearance".
5. Select "Dark" from the menu to enable dark mode.
6. Go back to the Mail app and you should see that it has switched to dark mode.

Note that dark mode is only available in Mojave Mail if you are running macOS Mojave or later. If you are running an earlier version of macOS, you may not have the option to enable dark mode.