Animating button properties on mouseover

At the end of the previous recipe, we illustrated two ways to visually communicate buttons to users. The animation of button properties can be a highly effective and visually interesting way to reinforce to the user that the item their mouse is currently over is a clickable, active button. One common animation effect is for a button to become larger when the mouse is over it, and then shrink back to its original size when the mouse is moved away. Animation effects are achieved by choosing the Animation option for the Transition property of a Button GameObject, and by creating an animation controller with triggers for the Normal, Highlighted, Pressed, and Disabled states.