Beautiful Themes Keyboard by AndroidCool is a free Android app that allows you to add stunning themes to your keyboard. With this app, you can customize your keyboard with beautiful designs and emoticons to make your writing and text messages more joyful and expressive. The app comes with a variety of themes, including love, sports, romantic, action, and golden. You can even use your own images as a background for the keyboard.

To set up the new keyboard theme, simply click the keyboard key, select "Change keyboard," and click the OK button. From there, you can customize the keyboard by selecting the language and shortcuts and choosing a shape and background image. You can also choose from a variety of pre-made beautiful shapes or use your own image from the camera or studio.

Overall, Beautiful Themes Keyboard is a great app for anyone looking to personalize their Android keyboard with elegant and stunning themes. It's easy to use and offers a wide range of customization options. Best of all, it's completely free!