I'd do amber, just to limit giving the LEOs a reason to take notice. I had a bud who had some sort of green marker lights on his car. Local officer made him dismantle the lights on the spot to avoid a ticket.
lol, I passed a CHP with green LED windscreen washers, and turned them off quite quickly after I remembered they were still on.
The officer pulls me over about 2 miles down the highway after they U-Turned, to give me the ticket anyway.