Merc: "Man, I am going to get so many hits on Dustube."

*An android Please we have to use the correct terms here, but yes she kinda killed Penny (not directly, though…)

Also: Now we see the differences between Emerald, Mercury and Cinder.

Mercury and Cinder seem like the kinda persons that can/will simply kill/let people die (even innocents).

Emerald on the other hand looks more like a person that would only kill if needed (if she is attacked, the person isn't really "alive" from her viewpoint etc.) and never someone innocent. She is a thief not a killer.

So Mercury and Cinder would be "black" (see what I did there?), but Emerald would be more "gray"