The offset sun through a lensball.
Mac users, one thing I can share that I found out is do not leave your laptop battery plugged in all the time like I did. It will make the battery swell. Hence the issue with my trackpad. My battery is swelling and warping my case. Battery, track pad and keyboard are all one assembly and if not covered under Apple care it is $450. FYI. That was just one of my issues, but driving me nuts right now as sometimes it works and some time when it get hot it does not.