Coold idea and good execution. It killed me once before I realized that you could not only switch colors but also turn off all colors by double clicking, which felt like a bug until I realized what has happened.
Given that there is no downside to having the cable run at all times, being able to switch it off feels more like a punishment once the game gets hectic and less like an interesting feature.
Still, knowing that, the second round was a lot more smooth and fun :)