Neon only reads against pure black. The shadow is not absence — it is the canvas that makes the glow possible.
Showa-era letterforms rendered in ionized gas, casting their afterimage on wet asphalt below the facade.
Velvet absorbs, mirror reflects, acrylic diffuses — each surface breaks the neon glow in its own language.
The tube cools in milliseconds. The memory of hot pink lingers on the retina for hours after the sign goes dark.