Show windows – This will show you a thumbnail view of all the pages or applications that you have open on your Chromebook.
Lower brightness – This will lower the brightness of your display.
Increase brightness – This will increase the brightness of your display.
Play/Pause – This will play or pause the currently playing media content on your Chromebook.
Mute – This will mute the currently playing media and all other sounds on the Chromebook.
Lower volume – This will lower the volume of all sounds on the Chromebook.
