It probably won’t come as a surprise when I tell you that Crying Suns’s depiction of space is not physically accurate. Crying Suns has a very unique and distinctive art direction and, as a 2D game, some very specific constraints around readability – what the player is able to perceive on the screen.
Starfields are generally represented as white dots superimposed on a pitch black background. It is not by chance that most spacecraft – both in fiction and in reality – are white. First, you can see them on screen, which tends to produce better TV shows. Second, it helps with reflecting light and the heat that would otherwise be induced by black materials.
However, we wanted to create a grimmer and darker world with Crying Suns. White was not really an option. And even so, as our camera setup looks right towards the stars of the various orbital systems, every stellar object would be backlit, and then would appear mostly black. So we had to find a solution.
Source: Unity Technologies Blog