PATTERN AND COLOR ABSTRACTION IN A GRAPHICAL USER INTERFACE

Systems and method for providing a user with increased flexibility and control over the appearance and behavior of objects on a user interface. Sets of objects can be grouped into themes to provide a user with a distinct overall impression of the interface. Themes can be switched dynamically by switching pointers to drawing procedures or switching data being applied to these procedures. To buffer applications from the switchable nature of graphical user interfaces, colors and patterns used to implement the interface objects are abstracted from the interface by, for example, pattern look-up tables.