There are several keyboards for Android, one of which is well known is Google's because it's simple, fluid and already comes as the default keyboard on many smartphones.
Until recently, the keyboard didn't have any kind of customization, which was very annoying and led users to download other keyboards such as Swiftkey, but with the new updates, great new features have emerged.
How to customize or colorize the Google keyboard?
Well, customizing the keyboard is very simple, just update the application, or download it if you don't have it, the download is at the end of the post, after that just access the settings and customize, if you don't find it watch the explanatory video below:
Google Keyboard 5.1.13.123729326 - 22 MB
This keyboard may not work on some devices