So, how do you change theme of the official Android Keyboard or Stock Android Keyboard from Google?
Google has kept this trick hidden, but thanks to Google Operating System, I can now tell you get to enable themes on Google Android Keyboard and change to one of your choice.
Change Theme of Google Keyboard for Android
- Long-press on the home screen and head to Shortcuts > Activities from the menu that pops up.
- Choose “Google Keyboard” (or “Android Keyboard (AOSP)” depending on your device and Android version), and head to “Android Keyboard Debug Settings.” This will create a shortcut on your home screen.
- Tap that new shortcut and you’ll get some advanced settings for your stock keyboard. Choose “Keyboard Theme” to pick a new theme for your keyboard.