Themes on the Nokia C7 were more than just aesthetic changes; they offered a comprehensive transformation of the phone's interface. A theme could change the look and feel of the home screen, menu navigation, icons, and even the device's wallpaper. This level of customization allowed users to not only personalize their device's appearance but also to some extent, its functionality.
Specific themes often included custom ringtones or UI sounds. 2. How Themes Work on the Device nokia c7 themes work