# Corresponding source and provenance

The corresponding source for Colour Tools 0.2.0 is:

https://git.add-ideas.de/lotobo/colour-tools/src/tag/v0.2.0

Build that tag with Node.js 22 and the exact dependency graph recorded in
`package-lock.json`:

```sh
npm ci
npm run release:artifact
```

The generated JavaScript and CSS bundles are not the preferred form for
modification. No runtime code is loaded from a CDN. The production ZIP contains
this source pointer, the application licence, the dependency licence inventory,
and the applicable third-party notices.

## Implementation provenance

- The application is original project code and uses the shared Toolbox SDK
  packages at version 0.3.0 for its manifest contract, shell, and build checks.
- Colour conversion and adaptation use Color.js 0.7.1. Its MIT licence is
  reproduced in `LICENSES/colorjs.io-MIT.txt`.
- The compositing, interpolation, palette, image-sampling, contrast, comparison,
  gamut, and colour-vision utilities in `src/colour` and `src/palette` were
  implemented for this project.
- CSS Color 4 and WCAG 2.2 were used as public technical specifications. No
  source code or branded assets were copied from the example websites that
  informed the feature list.