「FontVibe」は FontVibe AI で作成したレインボーの文字エフェクトです。鮮やかな多色レインボーグラデーションの文字エフェクトです。滑らかな色の移り変わり、プリズムのような光、そして陽気で色彩豊かなタイポグラフィが特徴です。

rendered as rainbow text effect — COLOR (mandatory): each individual letter must contain a complete ROYGBIV rainbow gradient top-to-bottom within itself — top=red, upper=orange, mid=yellow-green, lower=blue-indigo, bottom=violet. NOT one color per letter. NOT a gradient across the whole word. Every letter is its own complete rainbow. Full chroma Pride flag saturation — not pastel, not muted, not shifted to any single hue. 'FontVibe' as rainbow neon glass tube letters centered at 68% frame width in 16:9. Background: deep pure-black night cityscape — blurred city lights in background, rain-wet reflective surface below the letters creating mirror reflections of the neon glow, faint rain streaks in the air. Each letter tube emits 1/r-squared ROYGBIV glow in the darkness — electric, vibrant, Tokyo Shinjuku neon district at night energy. The wet surface reflection doubles the neon rainbow effect.