Shift has two options for themes: Light Mode and Dark Mode.
You can customize your theme at any time on Shift by completing the following steps:
1. Right-click on your sidebar and choose either "Light Theme" or "Dark Theme" on the menu.
1. Click on the Options menu in the bottom left.
2. Go to Settings (the wrench icon).
3. Click on General.
4. Click on Appearance.
5. Look for the "Theme" setting.
6. Change to Light or Dark depending on your preference.