To Install New Themes On Linux Mint 13 Cinnamon read below: Steps: 1. Go to “Cinnamon Settings” and select theme. 2. To change theme, just select any one of the theme present there . 3. To Install new theme , click on ” Get New Theme”. 4. Download any theme from the website. 5. Create a folder with name “.themes” into ” Home” directory. 6. Extract the theme into “.themes” folder. 7. Go again to Cinnamon Settings and select theme. 8. Select the latest theme appearing on the list. 9. Enjoy 🙂