4. A non-transitory computer-readable medium comprising program code for receiving a confirming gesture formed on or about a sensor panel, the program code for causing performance of a method comprising: detecting one or more images at a first time at the sensor panel; determining that the one or more images at the first time are arranged in a pattern corresponding to a predetermined OK gesture; determining a centering parameter from the one or more images; associating the OK gesture with a user interface (UI) element coincident with the centering parameter, the UI element accepting a confirming input; and providing the confirming input to the UI element.
4. A non-transitory computer-readable medium comprising program code for receiving a confirming gesture formed on or about a sensor panel, the program code for causing performance of a method comprising: detecting one or more images at a first time at the sensor panel; determining that the one or more images at the first time are arranged in a pattern corresponding to a predetermined OK gesture; determining a centering parameter from the one or more images; associating the OK gesture with a user interface (UI) element coincident with the centering parameter, the UI element accepting a confirming input; and providing the confirming input to the UI element. 19. The computer-readable medium of claim 4 , wherein determining that the one or more images at the first time are arranged in the pattern corresponding to the predetermined OK gesture is independent of a movement indicated by the one or more images.