xBlack - Teal Theme is a personalization application designed specifically for all Xperia devices running Kitkat, Lollipop, Marshmallow, and Nougat XPERIA Firmware. The application does not require root and changes the accent colors, home, top contact, dialer, navibar, and buttons. Additionally, it offers a keyboard skin, but it is not available in the Xperia X series.

It is important to note that the theme has been tested and works properly on phones without root. However, the difference in various phone models can cause problems, and it may not work when using applications such as Xposed module or intervening in the application system. The developer, Michał Ambroziak, requests that users do not use any part of the application without permission as all files, wallpapers, and icons were made by him and have all the rights to them.