SpotlightJS shows a spotlight over a Web page. It can create a transparent canvas on the top of the Web page with a dark area and a light rounded spot area which make the content below it appear as if it highlighted by a spotlight. The spotlight can be animated so it can move at a given speed. Callback functions may be invoked when the user drags the mouse over or clicks in the spotlight or the canvas area, as well when the animation starts and ends.
Gestures is an object that can recognize user gestures that form configurable shapes. It can listen to events of the user moving the mouse forming known gesture shapes. The object can recognize custom gesture shapes defined by a list of vertex points of the shape. A given callback function is invoked when the object recognizes a known user gesture shape. The object can also draw the gesture shape as the user moves the mouse.