Don't know why Umberto said he sees nothing wrong.
The question was if there was something "wrong" in the installation, and the reply simply states there's nothing wrong with the installation, because that is how we designed them.
That one might LIKE the lights being made like that, it's a matter of tastes, but this is not a bug or an install problem.
FSDT actually uploaded a fix for this issue last year.
It's more as alternate texture, that one might decide to use or not. Since we actually liked the lights as they were (otherwise we wouldn't have designed them that way), we haven't replaced the texture in the installer, and I also totally forgot that post.