In this demo the columns of the pad are acting as sliders, which fade up and down smoothly when pressed.

The video quality is poor due to a combination of my crummy camera and my crummy skills at using it. The buttons aren't quite as bright as they seem in the video, and they look much redder in reality. Any flickering you might see is definitely not noticeable in person.

Read all about it at upnotnorth.blogspot.com/