Dumb ??? about wire color

I know the brake light switch is located on the brake pedal arm about 9" above the brake pedal. The plunger from the switch extends when the brake pedal is pushed thus completing the circuit and turning on you brake lights. Their is 2 green wires connected to this switch and should be the only switch attached to the brake pedal assembly under the dash. MY QUESTION IS " Is the green wire with a red line on it positive or the negative?" :screwy:
Thanks,
Buddy Mason

positive

Thanks, I thought so.