「洪」は FontVibe AI で作成した中国墨絵ブラシの文字エフェクトです。中国の墨（すみ）による筆文字書道のスタイルをラテン文字に応用しました。深い黒墨に本物の筆先の質感、太細のはっきりした筆致の変化、そして画仙紙の趣を備えています。中華レストランのブランディング、武術、ウェルネス、文化的なデザインに最適です。

rendered in Chinese ink brush calligraphy style. Letterforms painted with a fully loaded sumi ink brush — deep black ink, visible bristle marks along stroke edges, wet ink pooling at stroke starts, feathered dry-brush trailing ends. Authentic ink density variation: thick rich black cores fading to grey at thin passages. Rice paper texture visible behind. Traditional Chinese calligraphy energy — each stroke confident, intentional, irreversible. LETTERFORM PRIORITY: when the chosen font carries its own treatment, that font's letterform shapes take priority and own the letters; this style governs the sumi ink medium, the bristle and ink-density behavior and the rice-paper ground. FALLBACK MATERIAL: if the font carries no material of its own, render the letters as deep black sumi brush strokes with visible bristle marks, wet ink pooling at stroke starts and feathered dry-brush trails on rice paper. COLOR PRIORITY: keep the font's own colors if specified; otherwise rich black ink fading to grey at thin passages. Create a square, contemplative calligraphy composition featuring the single character 洪, large and unmistakable at the center. Preserve the character exactly; do not add any other writing or lettering. Let the brushwork command the open space, with a slight upward momentum and a confident, sweeping presence. Set it on warm ivory xuan paper, visibly fibrous and softly mottled, with generous unmarked paper around the character. Allow a pale, restrained ink wash to drift behind the lower strokes like distant water and mist, never obscuring the character. Keep the surrounding atmosphere quiet and spare. A few tiny ink droplets may scatter near the most energetic stroke, while subtle feathering into the paper fibers gives the mark a human, immediate presence. Place one small vermilion seal impression near the lower-right edge, clearly secondary and without legible added text. Balance the dark central mass against luminous untouched paper; the image should feel like a finished traditional ink painting, not a diagram or decorative pattern.