I played around with the exposure settings when I took the pictures, and the only ones that had accurate color were the ones where the door wasn't even visible. All you can see is the light surrounded by black. The first picture you posted is close to what I wound up with when I did that:
They're almost too bright to get a good picture of!
I have to say, I actually like that look. I prefer the uniform color of the plexiglass lenses alone, but for those that want to keep a stock look, it definitely distributes the light more evenly.