FFAStyles Prompt Library

A collection of JSON-based image prompt templates. Each file contains a structured object describing a visual style and output constraints. Paste your subject into the object_specification.subject field and adjust as needed.

Tutorial: Use with ChatGPT

Follow these steps to generate an image using any style template in ChatGPT:

1. Open a style file (for example, Default Styles/Vector Illustrator.md).
2. Copy the entire JSON object from the file.
3. Paste it into ChatGPT.
4. Edit the value of object_specification.subject to your desired subject (e.g., "retro robot vacuum").
5. Send the message and ask ChatGPT to produce the final prompt (or the final JSON) for image generation.

Example of what you paste (only change the subject):

{
  "metadata": { "type": { "category": "Shapes" } },
  "object_specification": { "subject": "retro robot vacuum" },
  "drawing_style": { "perspective": "flat, 2D vector perspective" },
  "output": { "format": "PNG or SVG", "canvas_ratio": "1:1" }
}

Tips:

• Keep constraints: Avoid removing required fields (background, output, style constraints) to maintain consistency.
• Swap styles: Try different files (e.g., Doodles.md, 3D Cute.md) and only change the subject.
• Metadata: The metadata.type.category is for organization and filtering; you do not need to edit it.

Metadata

Each style now includes a top-level metadata object for image-generation products:

"metadata": {
  "type": {
    "category": "Elements / Stickers"
  }
}

• type.category: One of the following taxonomy buckets:
  • Strokes
  • Shapes
  • Elements / Stickers
  • Images

This field appears at the very top of every style file and can be used to filter or group styles programmatically.

• Doodles: Hand-drawn digital notes look. Clean black lines, minimal, no shading. White background.
  • File: Default Styles/Doodles.md
  • Best for: playful sketches, stickers, whiteboard notes
  • Example:

{
  "object_specification": { "subject": "coffee mug" },
  "drawing_style": {
    "line_quality": { "type": "solid black ink" },
    "background": { "type": "solid white" }
  }
}

• Wireframe: Technical blueprint-style line work. Geometric, construction lines visible, no fill. White background.
  • File: Default Styles/Wireframe.md
  • Best for: product structure, CAD-like sketches, concept drafting
  • Example:

{
  "object_specification": { "subject": "desk lamp" },
  "drawing_style": {
    "structure": { "perspective": "isometric" },
    "fill_and_texture": { "filled_areas": "none" },
    "background": { "type": "solid white" }
  }
}

• Pictogram: Ultra-minimal black silhouette built from basic shapes. Transparent background.
  • File: Default Styles/Pictogram.md
  • Best for: signage icons, sports symbols, universal pictograms
  • Example:

{
  "object_specification": { "subject": "bicycle" },
  "drawing_style": {
    "color_palette": { "range": "solid black only" },
    "background": { "type": "transparent" }
  }
}

• Vector Illustrator: Flat vector illustration with bold outlines and transparent overlays for shading. Transparent background.
  • File: Default Styles/Vector Illustrator.md
  • Best for: app illustrations, marketing graphics, icons
  • Example:

{
  "object_specification": { "subject": "backpack" },
  "drawing_style": {
    "lighting": { "type": "flat shading via overlapping shapes" },
    "background": { "type": "transparent" }
  }
}

• 3D Cute: High-fidelity isometric 3D render with soft lighting and a white die-cut sticker border. Transparent background PNG.
  • File: Default Styles/3D Cute.md
  • Best for: product stickers, UI iconography with depth
  • Example:

{
  "object_specification": { "subject": "game controller" },
  "drawing_style": {
    "perspective": "isometric",
    "background": { "style": "fully transparent alpha PNG" }
  }
}

• Origami: Handmade construction-paper origami assembly with visible paper textures and slight imperfections. Transparent background.
  • File: Default Styles/Origami.md
  • Best for: crafty, tactile visuals, playful subjects
  • Example:

{
  "object_specification": { "subject": "fox" },
  "drawing_style": {
    "textures": { "material_finish": "matte construction paper surface" },
    "background": { "background": "transparent" }
  }
}

• Textbook Diagram: Clean, modern medical/textbook-style diagram with thin outlines and pastel fills. White background.
  • File: Default Styles/Textbook Diagram.md
  • Best for: educational diagrams, labeled figures (labels added separately)
  • Example:

{
  "object_specification": { "subject": "human heart" },
  "drawing_style": {
    "line_quality": { "type": "thin, precise black outlines" },
    "fill_and_texture": { "filled_areas": "soft faded pastel fills" },
    "background": { "type": "solid white" }
  }
}

Folders

• Default Styles/: curated templates included with this repo
• Additional Styles/: add your own styles here (kept with a .keep file)

Quick usage

1. Open a style file (e.g., Pictogram.md).
2. Set object_specification.subject to your subject.
3. Keep background constraints as-is for consistent output.
4. Export using the indicated output.format and canvas_ratio.

Each .md contains the full JSON template with detailed fields for fidelity and consistency [[memory:6905418]].