SMS Messages Spheres Green is an amazing and completely free app that will make your phone stand out with its cool message box overlay. The app is designed in a very simple and easy to use manner that will allow you to customize the text messages to your own preference. The message box is also customizable and you will be able to change its font, text color and size as per your requirement.

There are many themes that you can apply to your phone and you will be able to see the changes instantly. You don't need to do anything else, just install the app and apply the desired theme.