This pane demonstrates a pull-to-refresh gesture. Pulling down on this app will trigger a callback called "refreshFunction" that will wait for 2 seconds and then add a random quote to the top of this list. While it is refreshing, a material design progress bar will display at the top of the content area.
This page will really only demonstrate something on mobile devices. On a desktop you can emulate a mobile device to fake the pull to refresh gesture.