Restore default experience for Google apps from Star Wars. To awaken the force within if you’ve visited Google Star Wars website (with your Gmail account signed into) in Chrome browser and joined a side after choosing between dark and light, then you’ll experience Star Wars across Google Apps such as Gmail, YouTube, Google Search, Chrome browser, etc.

Getting back to regular Google Experience from Star Wars

1 . Ensure you’ve already signed into your Gmail account

2. Visit google.com/Starwars 

3. Drag your avatar to center and click on ‘back to default’ to restore your regular Google experience.

Google Star wars back to default Gmail

If you don’t switch to regular state, “your Google experience will automatically return to its regular state by February 1, 2016”.