{
  "tool": "built-in image_gen.imagegen",
  "mode": "default built-in",
  "date": "2026-10-12",
  "images": [
    {
      "article": "Your Litecoin invoice expired. What happens to the payment?",
      "filename": "invoice-expiry-hero.webp",
      "prompt": "Use case: photorealistic-natural\nAsset type: landscape editorial hero photograph for an English beginner Litecoin guide, horizontal 3:2 composition.\nPrimary request: illustrate \"Your Litecoin invoice expired. What happens to the payment?\" with a quiet analogue-clock and paper still-life. This is a conceptual image about a quoted payment deadline, not documentation of a transaction.\nScene/backdrop: an ordinary lightly worn offwhite tabletop in daylight, with muted olive and coral material accents.\nSubject: a small simple analogue desk clock with a cream dial, two hands and clean hour tick marks, absolutely no numerals, letters or logo. A narrow plain unprinted receipt lies partly beneath the clock's edge. One small unmarked brushed silver metal disk rests near the paper. Keep the composition to these meaningful objects.\nStyle/medium: photorealistic editorial still-life with real matte materials, delicate paper wrinkles, slight wear and natural daylight. Modest everyday objects, no glossy advertising polish.\nComposition/framing: horizontal 3:2, close balanced view with strong clock-and-paper silhouettes readable as a small thumbnail, comfortable margins.\nLighting/mood: side daylight, soft true shadows, calm and explanatory. No alarm, breaking-news urgency or threat.\nColor palette: offwhite, dusty olive, restrained coral and gray silver.\nConstraints: no words, numbers, logos, watermark, pseudotext on the paper, addresses, transaction IDs, QR codes, screenshots, readable wallet UI, seeds or private keys. No huge gold coin, neon, globe, price chart or glowing data lines. The clock has no brand and no numeric dial. This is an original conceptual editorial photograph, not an actual receipt or proof of any particular payment timing.\nAvoid: paper-cut collage, envelope/redaction motifs, phones, blue measuring gates and generic crypto promotional art.",
      "alt": "An unnumbered olive desk clock beside blank receipt paper and a plain silver disk in daylight.",
      "caption": "Conceptual editorial image of an invoice deadline; the clock and blank paper do not document an actual payment or measured timing."
    }
  ],
  "diagram": "Original explanatory SVG; scope and values follow the linked experiment or fictional scenario."
}