「HAPPY B-DAY」は FontVibe AI で作成したY2K バブリーの文字エフェクトです。Y2K バブリーの膨らんだ文字。パステルのピンクからパープルへ、ぷっくりと丸く柔らかな膨張フォルムに、ツヤのあるキャンディ質感を組み合わせました。2000年代のスウィートなパーティーガール美学です。

Y2K bubbly inflated letters — extremely round pillow-soft letter forms completely inflated like over-pressurized balloons. Pastel pink-to-lavender gradient across the glossy candy surface. Strong white specular highlight on the top of each inflated letter. Extremely smooth and soft surface. Sweet 2000s Y2K party aesthetic. Maximum bubbly inflation quality. LETTERFORM PRIORITY: when the chosen font carries its own treatment, that font's letterform shapes take priority and own the letters; this style governs the over-inflated pillow form, the glossy candy surface and the speculars. FALLBACK MATERIAL: if the font carries no material of its own, render the letters as extremely round over-inflated pillow letters with an ultra-smooth glossy candy surface and a strong white top specular. COLOR PRIORITY: keep the font's own colors if specified; otherwise a pastel pink-to-lavender gradient. Render the exact text "HAPPY B-DAY" as maximally over-inflated Y2K candy balloon lettering, with each character swollen into smooth pillow-like volumes, fully rounded joints, bulging curves, and ultra-clean seamless surfaces. Use a pastel pink-to-lavender-to-candy-blue gradient flowing across the glossy toy-plastic material, with bright white rounded specular highlights along upper curves, soft colored reflections, and faint internal glow at the thickest inflated areas. Give the text dominant celebratory scale and clear, highly legible spacing. Surround it with floating translucent heart balloons, five-point star charms, tiny glossy chrome beads, confetti curls, and miniature birthday candles with small pink-and-blue flames. Add a few iridescent butterfly stickers and pearlescent sparkle bursts, all with soft contact shadows and ray-traced reflections. Background: a seamless airbrushed pastel sky gradient shifting from bubblegum pink through lavender into pale aqua, with subtle bokeh circles and faint holographic shimmer. Studio overhead lighting creates crisp white highlight blobs and soft diffused shadow beneath the inflated forms. High-resolution 3D product render, smooth anti-aliased edges, saturated candy colors, polished Y2K party graphic treatment.