Related Clues:

• Bar sign light
• Goes around in New Zealand cotton that's very bright
• Very bright, as a color
• Very vivid, as a crayon
• Like some bar signage
• Element in most flashing lights
• One dubious name for inert gas
• Store-window light
• About .002% of the atmosphere
• Like some lights
• Gas in a diner sign
• Gas one mixed with nitrogen, in either order
• Marquee gas
• Like fluorescent colors
• Big element in Vegas