Why We Have Standard Controls
If you want to browse through the list of widgets, your mouse has to travel all the way from one side of the screen to the other each time you change direction. Your target after each trip is a tiny 16-pixel-diameter circle.…The Dashboard widget picker is essentially a broken scroll bar. It’s a scroll bar without the scroll thumb, and with unidirectional arrows that overlap the content area placed on opposite ends of the container.
