Gmail now offers us with a new, elegant, clean and pretty Google Plus look to our Gmail. It’s all new look. Just like Google Plus.
Follow these steps to enable new gmail theme similar to google plus in your gmail.
1. Click on the ‘gears’ icon on the top bar (Top Right)
2. Select Mail settings
3. Click the Themes tab
4. Now choose from the two new themes, Preview OR Preview Dense, seen at the bottom