Changes in version 0.3.1 (2025-09-15)                  

New (experimental)

  - render_coral_rgl_experimental(): a feature-rich 3D renderer for
    coral plots.
    Theming, legends, and flexible mappings for edge width/color/alpha.
    Status: experimental — arguments and defaults may change
    before 0.4.0.
  - metric_domains(): compute [min, max] ranges for rule metrics
    (support, confidence, lift) from a parsed object or a data frame.
    Status: experimental.
  - coral_list_themes() and coral_get_theme(): list and retrieve theme
    objects for the experimental renderer. Status: experimental.

Enhancements

  - build_coral_plots()
      - New optional arguments: bin_breaks, bin_digits (defaults
        preserve prior behavior).
      - Returns additional node fields: node_id, is_root, coral_id,
        interval_brackets, bin_index.
      - Adds a new return component bin_legend (or NULL) to describe
        bins.
      - The original nodes, edges, and grid_size components are
        unchanged.
  - parse_rules()
      - More permissive input: accepts common column aliases
        (lift/Fitness, lhs/rhs, case-insensitive).
      - Output now carries class "parsed" to enable S3 methods like
        metric_domains(parsed).

Bug fixes

  - Interval parsing (C++): mixed bracket intervals like [lo, hi) and
    (lo, hi] are parsed correctly; bracketed intervals now consistently
    use rel_op = "in".
  - LHS parsing (C++): single outer braces are stripped before
    splitting, so {A,B} is treated as A, B.

Internal

  - Rcpp entry points (build_layout_cpp(), parse_rules_cpp()) unchanged.