add new patterns: blinking two background lights on at a time from left to right, turning lights on and off from the inside out, turning on from left to right, keeping the last light on
add new patterns: blinking two background lights on at a time from left to right, turning lights on and off from the inside out, turning on from left to right, keeping the last light on

jzucker2/HackAColaSign,jzucker2/HackAColaSign