You may have heard that Aliens: Colonial Marines has some problems. Among those problems is the fact that the PC version of the game looks like pretty raggedy. The ship interiors and darkly-lit alien worlds taking very little advantage of recent advances in PC graphics technology.
While the game itself—the levels, the writing, the audio—may be beyond saving, that's not going to stop intrepid PC modders from doing their damnedest to improve it. Soon after the game came out, several mods surfaced that would enable DirectX 10 support and enhance Colonial Marines' lighting effects, which were a notable weakness of the vanilla game. (Top image is another slider of the SweetFX mod via DSOgaming.)