Samsung Mobile Theme Editor interface:

The creation of themes is one of SIDI's projects and I'm currently working on it as a developer.

In this project I've customized the device screens using Kit & Rak assets (provided by Kit & Rak team).

Standard screens:

Customized screens:

Assets provided by Kit & Rak team (.psd file):

This theme is available at Samsung Theme Store for free!
(To access Samsung's Theme Store you need a Samsung Mobile Device)