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docs: add heat map chart page for Kibana Lens#5144

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florent-leborgne wants to merge 2 commits intoelastic:mainfrom
florent-leborgne:lens-heat-map-charts
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docs: add heat map chart page for Kibana Lens#5144
florent-leborgne wants to merge 2 commits intoelastic:mainfrom
florent-leborgne:lens-heat-map-charts

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@florent-leborgne florent-leborgne commented Feb 13, 2026

Summary

  • Adds the heat map chart documentation page for Kibana Lens with accurate settings verified against the Kibana source code.
  • Documents all dimensions: Horizontal axis, Vertical axis (optional), and Cell value with color palette configuration.
  • Fixes Style settings: Value labels (Hide / Show, if able), Tick labels toggles per axis, Orientation (conditional on tick labels).
  • Fixes Legend settings to match actual UI: Visibility (Show/Hide), Width dropdown, Label truncation with Line limit. No Position option for heat maps.
  • Includes one advanced scenario: highlighting anomalies with custom color ranges.
  • Adds example screenshots including a runtime-field-based hour-of-day heat map.
  • Adds the heat map chart entry to toc.yml and links it from the Lens overview page.

Closes #2547

AI disclosure

Yes — this PR was authored with the help of AI. Tool: Cursor, model: Claude 4.6 Opus High. All content was reviewed and validated by a human against the Kibana UI and source code.

- Rewrote heat map chart documentation to accurately reflect Kibana source code
- Fixed Style settings: Value labels (Hide / Show, if able), Tick labels toggles
- Added Orientation condition (only available when tick labels are enabled)
- Fixed Legend settings to match actual UI: Visibility (Show/Hide), Width, Label truncation
- Removed Position from legend (not available for heat maps)
- Streamlined advanced scenarios to keep only genuinely advanced one (custom color ranges)
- Updated examples with runtime field approach for hour-of-day heat maps
- Added actual screenshots for all examples

Co-authored-by: Cursor <cursoragent@cursor.com>
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github-actions bot commented Feb 13, 2026

✅ Vale Linting Results

No issues found on modified lines!


The Vale linter checks documentation changes against the Elastic Docs style guide.

To use Vale locally or report issues, refer to Elastic style guide for Vale.

- Add heat-map-charts.md entry to toc.yml navigation
- Convert plain text "Heat map chart" to a link in lens.md

Co-authored-by: Cursor <cursoragent@cursor.com>
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Page for Heat map charts

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