“SMILE! You're on camera.”是使用 FontVibe AI 创作的霓虹描边文字效果。空心描边大写字母，只由一条发光的蓝紫霓虹线勾出，内部漆黑，外有柔和光晕和亮面地面倒影。

Hollow neon outline letterforms — each glyph defined only by its glowing stroke border with zero interior fill, deep dark void inside each counter and enclosed space. Dominant headline in warm neon pink-magenta: white-hot center line along stroke path, vivid saturated pink-magenta glow zone expanding outward, soft wide halo — wider on exterior edge of stroke than interior edge, precisely mimicking real gas-tube light physics. Secondary smaller line in cool cyan-white hollow outline with identical tube-glow physics at reduced scale and wider tracking. Slightly uneven brightness variation along stroke paths for organic gas-tube character. Sparse elongated glow flecks and micro-sparks physically touching the exclamation mark stroke. Crisp consistent stroke weight, geometric precision. Rendered in high-contrast with dark saturated ink-like glow colors suitable for multiply blend mode. Background is a perfectly flat pure white #FFFFFF — no environment, no scenery, no atmosphere. The word SMILE! rendered as dominant headline letterforms in hollow neon outline — each glyph defined solely by its glowing stroke border, interior a deep void. The outline stroke glows warm neon pink-magenta with a white-hot center line running along the precise geometric stroke path, vivid saturated pink-magenta glow zone expanding outward, soft wide halo bleeding outward from the outer edge of each stroke — halo width wider on the exterior than the interior, following real gas-tube physics. Slightly uneven brightness variation along the stroke path for organic tube-light character. Below SMILE!, the phrase You're on camera. appears at roughly 35% the scale, in a cooler neon cyan-white hollow outline with the same tube-glow physics — white-hot center, outward cyan halo, hollow void interior. Wide tracking on the smaller line for airy hierarchy contrast. Faint sparse emitted sparks and tiny elongated glow flecks physically touching and flanking the SMILE! exclamation mark stroke. All letterforms sit in crisp geometric precision on a perfectly flat pure white #FFFFFF void — no background, no floor, no scenery, no environment of any kind.