Changelog

Version: 1.2.0
Date: 2026-08-30
  Info:
    - Updated for Factorio 2.1. Version 1.1.0 remains available for Factorio 2.0.
  Changes:
    - Chart backlight now uses 2.1's lower-resolution gradient lights (LuaRendering::draw_light change in 2.1.0)

Version: 1.1.0
Date: 2026-02-22
  Features:
    - Added bar_icons option to the stacked bar chart renderer

Version: 1.0.9
Date: 2026-02-19
  Changes:
    - Removed unused animation module (impractical in Factorio's rendering engine)
    - Fixed test failure in create_overlay_buttons (require inside test body)
    - Documented custom function support for label_format in line graphs

Version: 1.0.8
Date: 2026-02-19
  Features:
    - Reorganized source files into core/, charts/, and interaction/ subdirectories
    - New sub-table API (charts.surface, charts.render, charts.interaction, etc.)
    - Added create_overlay_buttons for z-ordered GUI button creation on camera widgets
    - Expanded documentation covering interaction, time series, and overlay buttons
  Info:
    - All existing flat API calls (e.g. charts.create_surface) remain fully backward compatible

Version: 1.0.2
Date: 2026-01-03
  Features:
    - Added mod portal thumbnail
    - Added factorio-test-harness integration for automated CLI testing

Version: 1.0.1
Date: 2026-01-03
  Features:
    - Added test suite using FactorioTest framework
    - Tests for surface management, line graphs, bar charts, and edge cases

Version: 1.0.0
Date: 2026-01-03
  Features:
    - Initial release
    - Line graph rendering with multi-series support
    - Stacked bar chart rendering
    - Hidden surface and chunk management
    - 12-color series palette
    - Time and percentage label formatting