colight 2025.4.1.dev202506131321

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Colight: declarative, reactive visuals in Python

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colight.plot provides a composable way to create interactive plots using Observable Plot.

Key features:

• Functional, composable plot creation built on Observable Plot (with near 1:1 API correspondence between Python and JavaScript)
• Support for sliders & animations
• Works in Jupyter / Google Colab
• HTML mode which persists plots across kernel restart/shutdown, and a Widget mode which supports Python<>JavaScript interactivity
• Terse layout syntax for organizing plots into rows and columns
• Hiccup implementation for interspersing arbitrary HTML
• Export visualizations as HTML or as .colight files for embedding in websites

For detailed usage instructions and examples, refer to the Colight User Guide.

## Development

Run `yarn watch` to compile the JavaScript bundle.

### CI Workflows

The project has several CI workflows:
- **Tests**: Runs JavaScript and Python unit tests
- **WebGPU Screenshots**: Tests 3D WebGPU rendering capabilities by capturing screenshots in headless Chrome
- **Docs**: Builds and deploys documentation
- **Pyright**: Runs type checking for Python code
- **Ruff**: Runs code formatting and linting

## Credits

- [AnyWidget](https://github.com/manzt/anywidget) provides a nice Python<>JavaScript widget API
- [pyobsplot](https://github.com/juba/pyobsplot) was the inspiration for our Python->JavaScript approach