All of the CSS files that are installed by the
Mobile Entree Base Feature have a naming convention that looks like this: [Style/Core].[CSS Supported Version].[Generation].css. This provides granular support for devices without having to fall back to the lowest common denominator.
The Core styles define the sizing, spacing, display, and position of elements rendered to your device. We seperated these styles from those that provide color and images so that developers could rebrand their applications without having to wade through a lot of CSS that they are not having to change.
If you are looking to rebrand the look of your application, take a look at
Style.css.