Tested just now on my second FL install. Beamed myself to various systems, saw how it looks.
It is, essentially, a very small (~1mb) DLL pack that makes the game render more darkly and with increased contrast. It looks good, because space needs to be generally more dark anyways. There aren't any new textures or things of that sort, so it keeps the vanilla feel and adds a little more realism in terms of brightness levels.
If the admins approve it, then I would put it in my regular Disco installation to use in the server as well. Thumbs up for the uploader!