How many think this color thing will stop the guys that are wiring with 14awg and 20amp breakers??? Or your real pro that wires the receptacles with 12awg but feeds the switch and fixture with 14awg from the receptacle circuit on a 20 amp breaker. If it even makes a dent in this problem I am all for it. I will need some solid evidence to be convinced. Now if I could think of a way to keep these pros from wiring three way switches with two conductor and picking up the neutral from another circuit, especially when a flight of stairs is involved, maybe I could patent it.