Actually thinking about it. @Shadows, @x50ShadesOfRage, and @Big Boned all have a point saying that we should be able to choose our own colors. By the looks of it. Some people enjoy the blue/black theme you have made joe. But you can also give them the choice to change the color if they want. So if one day I'm tired at looking at the black/blue theme, you can change them to have a reversed theme. Like red/white or just plainly blue/white. But in my opinion I still would choose the black/blue theme.
So a seperate conversation has arisen, regardless of theme options, what I am referring to is the main default theme. We currently only have one, and I do not know if we would introduce two new ones. It would most likely begin with just the one theme.