Feature Task

[Charts] Feature title

1. Brief Requirements statement

   1. What is the desired behavior or capability?
   2. Avoid implementation detail—focus on what, not how.

2. Current behavior & Problem statement

   1. How does this feature currently work?
   2. What is missing or problematic?

3. Use cases

   1. What are users trying to achieve?
   2. Provide specific examples.

4. API Design

   1. Location: (e.g., top-level chart options, series options, API method).
   2. New Property: Property name and type.
   3. Default Value: Default value.
   4. Valid Values: Valid values (e.g., boolean, number between 0 and 1).

5. API Deprecations/Hiding

   1. N/A

6. Breaking changes in API or behavior

   1. N/A

7. UX Design

   1. N/A

8. Dependencies

   1. N/A

9. Functional Acceptance Criteria

   1. Basic Scenarios:

      1. New behavior in basic scenarios.
      2. Expected output/state changes.

   2. Edge Cases:

      1. How this interacts with other features.
      2. Different configurations.

10. Non-functional Acceptance Criteria

    1. State: Define default or initial state clearly.

    2. Documentation:

       1. API docs updated.
       2. New section added to docs.

    3. Accessibility:

       1. WCAG-compliant: ARIA, focus, keyboard nav.
       2. Screen reader announcements.

    4. Localization:

       1. All user-facing strings are translatable.

    5. Theming:

       1. N/A

11. Out of Scope

    1. What is explicitly not being handled in this release?
    2. Future enhancements to consider.

12. Design Documents

    1. Link to Google Docs design documents.
    2. Link to Figma designs.