The red line sections do light up. They were clear and then I painted the back of it with candy red paint which is translucent. They will definitely work with the led panel if it's the same flat panel that is made for our cars. The entire piece starts off life being completely clear. I chose to put those colours where you see them. The satin black is on the outside of the lens so that it appears satin. Anything painted from behind will always be the natural high gloss of the plastic surface. In other words if someone tells me they want the entire piece to be painted translucent candy red with no black details I can do that too. Don't think that would look good but it's doable if asked for.