Krypton is the opposite number to Neon, the most highly-visible of the noble gases and known for glaring neon signs. The lesser-known truth is that every one of these signs which is not bright red-orange, is in fact a Krypton sign, because Krypton emits a neutral white light amenable to any color of glass tube you may wish to employ. So Krypton toils away in secret, apropos of its name, Greek for "hidden." As a personality, she peers out from her mechanized hideaway, or vehicle, or surveillance point, surrounded by the mechanisms of control, communication and ecnryption.