Cosmo Blue is a keyboard skin for the Japanese keyboard on Xperia™.
This feature of POBox will no longer be available for download after November 30th, 2021.
Once downloaded, you can set Keyboard Skin Cosmo Blue to your Xperia™ Japanese keyboard from your keyboard skin collection.
To learn how to set a keyboard skin, visit:
http://content.sonymobile.jp/ad/menu/poboxplus/keyboardskin/
Supported devices: Xperia™ with pre-installed Android 4.4 or later.
*Xperia™ Japanese keyboard is called "POBox Plus" in Japanese.