Fidget Spinner Keyboard Theme is a free Android app developed by Keyboard Arts Themes. It is a personalization program that allows you to change the look of your keyboard with fun and colorful fidget spinner designs.

To use this theme, you need to install the latest version of RainbowKey. Once you have installed the theme, it will be enabled automatically. If you don't have RainbowKey on your phone, you will be redirected to the Google Play page of RainbowKey. Install and activate the app to apply the theme.

RainbowKey provides many features, including the ability to create your own keyboard with your favorite pictures, decorate your keyboard with 40+ beautiful fonts and colors, and choose from 10+ built-in themes. It also has 30+ stylish fonts to decorate your words, swipe input for one-handed typing, smart emoji prediction with 1000+ lovely emojis, auto-correction and word prediction, and a moving cursor that allows you to swipe on the space bar to move the cursor position.

Overall, Fidget Spinner Keyboard Theme is a fun and colorful addition to your keyboard that can make typing more enjoyable.