the background galactic dust is missing in addition to everything being too dark.
Hmm, ok I will comment, background galactic dust is essentially black, with the removal of the tinting from the star, which arguably shouldn't have been there in the first place I suppose, the skybox is probably more realistic although far less attractive. You don't actually see background galactic dusk when you look at the sky, you just see black patches in the star field. However some of the stars as a result of whatever adjustments they have done seem...dimmer, in general the light is indeed dimmer overall and needs adjusting up in some areas. People have long complained about the tinting effect of stars and this may be a side effect of adjusting that.
As players, since none of us have actually been in space and can compare what we see to what it would actually look like, we don't really have any understanding of what it should look like near a nebula. However when we see the nebula on the skybox we aren't looking at a nebula we are looking at a generated 2d image wrapped around our pilot and the tinting effect from the star will have affected that just as it affects all other objects. So the question is do we go for what may be a slightly less realistic but much better looking background? I would personally go for the better looking since it really affects us not at all apart from a better looking game, but we might have a accept the tinting effect of starlight on other objects.
As for the stars themselves, yes there are serious problems, not just in brightness though. Recently taking off from a planet I saw a brown dwarf suddenly change from a brilliant white glare to a dim purple orb, why that happened I am not sure but I think it may have been an effect of the new atmospheres. Because only one of the stars act as a light source and the brown dwarf was a secondary the atmosphere may have been taking it's lighting from the main star not to far away rather than the brown dwarf it was orbiting and presented a white star for me to look at while I was in the atmosphere instead of the correct brown dwarf image, it did seem to change from white to purple after I left the atmosphere.
We can only continue to report these problems as bugs and problems using the issue tracker and on the forum here so that the devs are aware of the issues. Meanwhile I am still playing, yes it's slightly less attractive but I can live with that for a while!