1. A method comprising: receiving, by a computing device, an indication of a first gesture received at an input device; responsive to receiving the indication of the first gesture, outputting, by the computing device, for display, first information panel having a size; receiving, by the computing device, an indication of a second gesture detected at the input device, the second gesture having a gesture length; and responsive to receiving the indication of the second gesture: outputting, by the computing device, for display, an updated graphical user interface that includes the first information panel and a second information panel, the second information panel having a panel length based on the gesture length of the second gesture; and reducing, by the computing device, a brightness of the updated graphical user interface except a region of the updated graphical user interface that includes the second information panel, wherein the brightness is reduced based on the panel length of the second information panel.