A user is able to access additional functions not represented in a current image displayed by a graphical user interface. At least one function not presented on the current image is represented by a symbol on an underlying image that is at least partially covered by the current image. When the user performs a predetermined user input (e.g., selecting a corner of the current image), the underlying image and the at least one function represented thereby become accessible. When the user input is performed, a visual effect depicts the current image being at least partially removed from over the underlying image, thereby revealing and permitting access to the at least one additional function. The user input is made by the user performing an action with the user's hand or another object adjacent to a responsive display, or by using a pointing device to manipulate a displayed image.