feat: Add dark mode to anywidget mode #2365
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- Updates table_widget.css to use CSS variables for colors where possible.
- Adds @media (prefers-color-scheme: dark) block to handle dark mode overrides.
- Updates text and background colors to be legible in dark mode.
- Adds unit test to verify CSS contains dark mode media query.
- Update TableWidget CSS with variables and media queries for dark mode. - Pass CSS content via a new 'css_styles' traitlet to ensure reliable loading. - Implement robust JavaScript logic to detect VS Code dark themes and recursively clear ancestor backgrounds, eliminating the 'white frame' issue. - Reformat CSS and JS files to comply with project style guides. - Add unit test for CSS traitlet population.
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shuoweil
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Jan 6, 2026
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I did not rewrite this file, I just reformat this file. In addition to the reformatting, a new set of tests for the dark mode "Theme detection" feature was also added. The newly added tests in table_widget.test.js are:
- should add bigframes-dark-mode class in dark mode
- should not add bigframes-dark-mode class in light mode
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This was referenced Jan 22, 2026
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PR created by the Librarian CLI to initialize a release. Merging this PR will auto trigger a release. Librarian Version: v0.7.0 Language Image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:e7cc6823efb073a8a26e7cefdd869f12ec228abfbd2a44aa9a7eacc284023677 <details><summary>bigframes: 2.33.0</summary> ## [2.33.0](v2.32.0...v2.33.0) (2026-01-22) ### Features * add bigquery.ml.transform function (#2394) ([1f9ee37](1f9ee373)) * Add dark mode to anywidget mode (#2365) ([2763b41](2763b41d)) * Add max_columns control for anywidget mode (#2374) ([34b5975](34b5975f)) * Configure Biome for Consistent Code Style (#2364) ([81e27b3](81e27b3d)) * Add BigQuery ObjectRef functions to `bigframes.bigquery.obj` (#2380) ([9c3bbc3](9c3bbc36)) * Stabilize interactive table height to prevent notebook layout shifts (#2378) ([a634e97](a634e976)) ### Bug Fixes * implement retry logic for cloud function endpoint fetching (#2369) ([0f593c2](0f593c27)) * Throw if write api commit op has stream_errors (#2385) ([7abfef0](7abfef05)) ### Performance Improvements * Avoid requery for some result downsample methods (#2219) ([95763ff](95763ff2)) </details>
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The table now automatically adapts to dark and light themes in environments like Colab and VS Code for anywidget mode.
Verified at:
Fixes #<460861328> 🦕