How do I change my theme in Unity editor?

You can change the theme in the Unity editor through the Preferences/Settings menu. Here's how:

1. Launch the Unity Hub and open your project, or create a new one.
2. Access the Preferences (Windows) or Settings (macOS/Linux).
   • On Windows, click Edit > Preferences.
   • On macOS/Linux, click Unity > Settings.
3. In the Preferences/Settings window, select General.
4. Look for the Editor Theme option. It will likely be a dropdown menu.
5. Choose either Dark or Light from the dropdown menu, depending on your preferred theme. The editor will update immediately.