「Declan」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. LETTERFORM PRIORITY: when the chosen font carries its own treatment, that font's letterform shapes take priority and own the letters; this style always governs the color — every letter still carries its own complete top-to-bottom ROYGBIV rainbow gradient. FALLBACK MATERIAL: if the font carries no material of its own, render clean bold letters each filled with a full vertical ROYGBIV rainbow. COLOR PRIORITY: the rainbow gradient is mandatory and overrides any single font color — each individual letter is its own complete rainbow at full Pride-flag saturation. Create a joyful, polished birthday portrait with “Declan” as the unmistakable centerpiece. Set the name large across the middle of the composition, with generous breathing room around it and each letter clearly separated and easy to read. Keep every individual letter filled from top to bottom with its own complete, intensely saturated rainbow: red at the top, flowing through orange, yellow, green, blue, and indigo to violet at the bottom. Give the lettering the look of plump, inflated candy balloons with a smooth, glossy surface and bright, crisp reflections. Behind it, build a cheerful celebration scene in warm golden-hour light: a softly blurred party backdrop with golden string-light bokeh, colorful balloons gathered near the outer edges, and a light scatter of confetti along the bottom. Let the background colors support the rainbow without competing with the name; preserve a clean, bright area immediately behind the letters for strong contrast. Add warm sunlight from the upper right, glinting on the glossy balloon surfaces and casting soft dimensional shadows. Keep the composition festive, vivid, and welcoming, with no extra words or lettering.