“Retro Rajonas”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。

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. "Retro Rajonas" as rainbow retro balloon letters with full ROYGBIV gradient — red at top bleeding through orange, yellow, green, blue, indigo, violet at bottom — every individual letter carrying its own complete rainbow spectrum at maximum Pride-flag saturation. Render the letterforms with a thick vintage silkscreen press texture: slight ink-spread at edges, halftone dot grain visible in mid-tones, layered 70s-style drop shadow offset in deep violet-black beneath each letter. Background: sun-bleached retro concert venue wall — worn wheat-paste poster fragments in faded oranges, mustard yellows, brick reds peeling at corners. Warm afternoon light raking from upper-left at a low oblique angle, casting sharp drop shadows across the texture and amplifying the screen-printed feel. Scattered retro graphic elements — faded starburst badges, thin-rule geometric borders — blurred softly in the background plane. Overall material language: bold, sun-faded, chunky — like a 1970s festival poster freshly reprinted with explosive modern rainbow saturation. High-contrast lighting with warm amber fill and cool violet shadow, 8k detail, crisp edge fidelity on letter outlines.