Hello, 
It's possible to add when the power are sufficient the wire will be green ? 
Thank's :)

It's possible for me to implement this as a new feature, but I'm not sure it's a good idea. Assuming you want this alongside the capability to make the wires red with insufficient power, that would mean all wires are either green or red, which means players would no longer be able to choose wire colors. The way it's currently designed, players can choose green, blue, yellow or black, and the wires will automatically revert back to that color when sufficient power is provided.