「RAINBOW」は FontVibe AI で作成したカラーガラスの文字エフェクトです。一文字ずつ違う宝石色の、厚く中身の詰まったガラス文字。明るい白いスタジオの床に色の光だまりとコースティクスの扇を落とします。

sculpted as thick solid colored glass letterforms — each letter formed from deep-saturated jewel-tone glass with visible material weight and depth. The glass holds intense color throughout its body: ruby red, sapphire blue, emerald green, amber gold, cyan, or violet — color set by scene context. Top surfaces carry sharp mirror-bright specular highlights; side edges reveal full glass thickness with bright refracted light lines. Internal light scatters creating subsurface color gradients — luminous at the core, deeply saturated at edges. Caustic light patterns (rainbow-edged refraction fans) radiate from letter bases onto surrounding surfaces. Style may range from smooth precision-cut optical glass sculpture (modern) to segmented cathedral stained glass (traditional lead-came divided jewel panes) — determined by font choice. The defining quality: saturated transparent color glowing with transmitted light, like jewels held to sunlight. Square 1:1. RAINBOW as colored glass letters displayed in a bright modern interior — white gallery wall behind, warm gallery lighting. The glass letters sit on a clean white shelf, each letter glowing in its jewel hue: R=ruby, A=amber, I=yellow, N=emerald, B=sapphire, O=indigo, W=violet. Colored caustic light fans in each letter's hue spread across the white shelf surface and wall below. The scene communicates: a luxury home décor or event decoration piece using rainbow colored glass typography.