These branding examples have been created using Qt Quick Components for Symbian and they demonstrate different approaches on how to modify the colour scheme of UI elements. This application explains various techniques and covers most of the existing UI elements. The level of changes ranges from simple tweaks, such as changing an image, to rather complex changes, such as replacing an entire component. However, the main goal is to preserve the look and feel of the UI components as much as possible and make the application appear like an integral part of the phone.
This example is hosted in Nokia Developer Projects, where you can find implementation notes and release notes, discover recent revisions, and contribute to the project.