Thanks for contributing to Altair! 🎉

Please follow these guidelines:

1. PR Description

• Briefly describe the changes and their purpose. For help, check this guide.

2. Tests & Docs

• Include unit tests and update documentation for new features.

3. Commit Message

• Use semantic commit messages, e.g., "feat: Add embed_options to charts".
• Add ! for breaking changes (e.g., "fix!: Raise error when embed_options is None").

4. PR Title Types

• feat: New feature
• fix: Bug fix
• docs: Documentation changes
• style: Code style changes (no functionality change)
• refactor: Code restructuring
• perf: Performance improvements
• test: Add or fix tests
• build: Changes to build system or dependencies
• ci: CI configuration changes
• chore: Miscellaneous tasks
• revert: Reverts a commit