「SPECTRUM IRIDESCENT TEXT EFFECT · FONTVIBE」は FontVibe AI で作成したホログラフィックの文字エフェクトです。紫、シアン、ピンク、金へと移ろう虹色の箔面を持つ丸いサンセリフ文字。暗い床に艶のある映り込みと小さな光の粒。

rendered with iridescent holographic foil effect — multi-layer diffractive film surface producing rainbow spectral shifts across the letter faces, cycling through deep violet, electric cyan, hot pink to warm gold as viewing angle changes, like light diffracting through a stacked polymer security foil. The color shift is the result of structural interference, not pigment: each hue blooms and fades with directional light. Semi-transparent depth visible through the letter surface — background bleeds through with slight chromatic distortion. At all letter edges, rainbow chromatic fringe dissolves outward into scattered prismatic light particles, softening the hard boundary between letterform and space. Fine diffraction grating micro-texture across the surface. Pure black background. Directional overhead light source. Wide 16:9. Open MacBook Pro on a dark wood desk, screen showing a design application with 'SPECTRUM' holographic foil text as the hero element — rainbow color shift visible on screen. 'IRIDESCENT TEXT EFFECT · FONTVIBE' as smaller text below in the design. Beside the laptop: a coffee cup and design sketchbook. Warm desk lamp from the right, dark ambient environment. Designer workflow mockup — content creator / graphic designer use case.