well put by someone I can't remember, it's an addition to the Toxic, SuperNova, Static collection. I think Pure and Void can fit in that category too, as they're very deep colors.

So far, I've bought the Force, Relax, Hair color, and Usertext. I wouldn't recommend the usertext. Looks pretty similar to marine.

The Hair color is my favorite. The force and lax are good as well.