cmarteepants opened a new pull request, #64232:
URL: https://github.com/apache/airflow/pull/64232
Previously the `Theme` model only accepted `tokens.colors.brand`, forcing
distributors to use fragile `globalCss` CSS-variable hacks to customize
neutral surfaces, borders, and the gray palette.
This PR introduces a `ThemeColors` sub-model accepting `brand`, `gray`,
`black`, and `white` — all optional, with at least one required. Existing
brand-only configs continue to work unchanged.
### Changes
- `types.py`: Extract `ThemeColors` Pydantic sub-model with `brand`
(11-shade scale), `gray` (11-shade scale), `black` (single shade), and `white`
(single shade) — all optional. A `@model_validator` rejects an empty `colors:
{}`. A `@model_serializer` excludes `None` fields from the serialized output
for a clean JSON response.
- `test_types.py`: Add `TestThemeColors` and `TestTheme` test classes
covering valid/invalid inputs and serialization round-trips.
- `test_config.py`: Add a test verifying gray/black/white tokens pass
through the config endpoint.
- `customize-ui.rst`: Document the new tokens and add example config.
- Regenerate `_private_ui.yaml`, `schemas.gen.ts`, and `types.gen.ts`.
### Backwards compatibility
Existing configs with only `brand` continue to work without any changes.
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes — Claude Code (claude-sonnet-4-6)
Generated-by: Claude Code (claude-sonnet-4-6) following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
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