“NIGHT GUARDIAN” is a Superhero text effect FontVibe AIで作成した文字エフェクト. クロームの縁を持つ斜体の赤と青の3D大文字。後ろには赤いマントがなびき、稲妻の絡む白い閃光から飛び出します.

Heroic authority lettering — letters as identity marks of power: bold, monumental, commanding. Strong single key light defines high-contrast form. Letters feel physically constructed — cast, forged, embossed, or built — not printed. Background: deep dark field (navy, charcoal, or black) maximizes letter contrast and gravitas. Hard cast shadows anchor letters as solid objects. Composition: letters fill frame as absolute subject. Deep midnight navy gradient background, darkest at center bleeding to very deep charcoal-black at the top and bottom edges. A barely-visible rain-slicked rooftop texture at the very bottom third — reflecting cold blue city light in faint streaks. Distant storm clouds at the upper quarter, lit from below by warm amber city glow, deep and moody. A few faint distant skyscraper silhouettes at extreme upper corners at very low opacity. "NIGHT GUARDIAN" as massive ultra-condensed chrome badge letters centered both horizontally and vertically, filling 82% of the frame width — edge-to-edge typographic dominance. Single overhead cold-white spotlight from directly above. Electric-blue rim light from below, catching letter bases and bevel undersides. Hard cast shadows below the letters. The letterforms ARE the wallpaper — hero identity plate. 9:16 vertical.