“Make me wide rainbow bubble letters that say RATTLE”是使用 FontVibe AI 创作的彩虹文字效果。绚丽的多彩虹色渐变文字特效，色彩过渡顺滑，棱镜般的光泽与欢快的多彩排版。

Create a wide 16:9 typographic key-art composition. Center the exact headline "RATTLE" across 78% of the canvas width, on one line. Build each letter as a custom extra-wide rounded display form: low height-to-width proportion, thick monoline strokes, hemisphere terminals, soft deep counters, tightly spaced but with clear separations. Every individual letter must contain its own complete vertical ROYGBIV gradient: red at its top edge, orange through upper body, yellow and green at the center, blue and indigo below, violet at the bottom edge; full chroma, repeat this full spectrum inside EACH letter, never a gradient spanning the word. Render letters as inflated transparent candy balloons with spherical convex volume, thick ultra-glossy lacquer, pinpoint near-white circular highlights on each apex, subtle internal caustics, thin violet-blue rim shadows, and soft contact shadows. Under the headline, centered in small clean white uppercase lettering, render exactly: "MAKE SOME COLOR NOISE". Below it, in even smaller white uppercase text with generous tracking, render exactly: "A FULL-SPECTRUM TYPE STUDY". Background: bright cobalt-blue sky-gradient field, pale cyan at upper left deepening to saturated blue at lower right. Arrange a sparse burst of tiny glossy confetti capsules, star cutouts, and curled streamers around the outer perimeter only; use red, orange, yellow, green, blue, violet. Add a few soft sunlit lens flares and translucent bokeh discs behind the letters, never obscuring text. Strong warm sunlight from upper right produces sharp white specular flashes on the balloon surfaces. Keep a clean open central reading area, broad horizontal silhouette, crisp studio-quality 3D render, high-resolution, exact legible typography. No extra words, no logos, no people.