The dark smoke option gives you a completely blacked out look that blends the 3rd brake light in with the rest of the gloss black trim that is on the rear of the car. Even though it gives a dark appearance to the light, once you step on the brake, the light is still able to brightly shine through so you’re not hindering your visibility to others.

The light smoke option darkens the 3rd brake light but still allows a glimpse of the red to come through. It’s a nice subtle change to the rear end of the car to make things a bit more cohesive if the 3rd brake light seems to pop out at you. Even with the overlay installed, you’re still able to clearly see the light shine through once you step on the brake.
