Introduction
# coloring-page
Create a printable black-and-white outline coloring page from a photo.
This skill is designed to be used conversationally: - You upload an image - You say: “create a coloring page” - The assistant runs this skill and sends back the generated PNG
Under the hood, this uses the Nano Banana Pro (Gemini 3 Pro Image) image model.
## Requirements
- `GEMINI_API_KEY` set (recommended in `~/.clawdbot/.env`) - `uv` available (used by the underlying nano-banana-pro skill)
## How the assistant should use this
When a user message includes: - an attached image (jpg/png/webp) - and the user asks for a “coloring page”
Run: - `bin/coloring-page --in <path-to-uploaded-image> [--out <output.png>] [--resolution 1K|2K|4K]`
Then send the output image back to the user.
## CLI
### Basic
```bash coloring-page --in photo.jpg ```
### Choose output name
```bash coloring-page --in photo.jpg --out coloring.png ```
### Resolution
```bash coloring-page --in photo.jpg --resolution 2K ```
## Notes
- Input must be a raster image (`.jpg`, `.png`, `.webp`). - Output is a PNG coloring page on a white background.