「Happy 50th Birthday Dia!」は FontVibe AI で作成したバースデーの文字エフェクトです。白フチのくっきりした虹色ストライプの丸い大文字。紙吹雪と風船の束に囲まれ、ピンクからターコイズへの鮮やかなパーティー背景。

Create a finished 16:9 landscape birthday banner designed to read clearly on a television. Keep the headline and important details within generous TV-safe margins. Set the exact headline “Happy 50th Birthday Dia!” in the center, split into two balanced lines: “Happy 50th” and “Birthday Dia!” Use bold, firm, modern geometric display lettering with even heavy strokes, near-square proportions, open counters, gently softened corners, and tight even spacing. The letters have a smooth glossy coral-to-teal gradient, one crisp specular highlight, a thin clean white keyline, and a soft drop shadow. Keep the letterforms structured, not inflated or balloon-shaped. Build a vivid, bright turquoise-to-tangerine party backdrop with generous multicolor balloon clusters, energetic confetti, small sparkles, and short light streaks framing the composition. Reserve two large, empty, clean photo panels—one on the left and one on the right—each a simple blank warm-white inset with a crisp white border and a subtle shadow, ready for pictures to be added later. Keep all decoration away from the panel interiors and maintain strong contrast behind the headline. The headline is the only text: render it exactly as provided, with no extra words, numbers, or lettering. Polished high-resolution digital banner artwork, crisp edges, bright party lighting, saturated color, balanced composition.