Changes in version 0.3.0                        

New Geom Handlers

  - 11 new geom handlers bringing total support from 16 to 27 geoms:
    geom_step, geom_abline, geom_ribbon, geom_errorbar, geom_linerange,
    geom_pointrange, geom_crossbar, geom_rug, geom_label, geom_raster,
    geom_violin

  - Violin plots: Proper mirrored density rendering using violinwidth
    for accurate shape computation

Bug Fixes

  - Fixed division by zero when plotting constant data values (e.g., all
    y-values identical) - both root cause fix in get_min_max() and
    defensive guard in normalize_data() (Closes #1)

                 Changes in version 0.2.0 (2025-11-27)                  

Major New Features

Enhanced ggplotcli: Universal ggplot2 Converter

The ggplotcli() function has been completely rewritten to render any
ggplot2 plot in the terminal:

  - 16 Supported Geoms: geom_point, geom_line, geom_path, geom_bar,
    geom_col, geom_histogram, geom_density, geom_smooth, geom_area,
    geom_segment, geom_hline, geom_vline, geom_rect, geom_text,
    geom_boxplot, geom_tile

  - Legend Support: Automatic legends for color and fill aesthetics

  - Faceting Support: Both facet_wrap() and facet_grid() work
    automatically

  - Theme Auto-Detection: Automatically respects ggplot2 themes -
    theme_bw() adds borders and grids, theme_classic() shows only
    borders, etc.

  - Multiple Canvas Types:
    
      - braille: Highest resolution using Unicode Braille patterns (2x4
        dots per character)
      - block: Medium resolution using block elements
      - ascii: Basic ASCII characters for maximum compatibility

  - Styling Options: Configurable borders, grid lines, titles,
    subtitles, captions, and axis labels

Boxplot Rendering

  - New boxplot_style parameter: "ascii" (box-drawing characters) or
    "braille"
  - Renders whiskers, box (Q1-Q3), median line, and outliers
  - Perfect centering of whiskers and outliers

Optimized Color Mapping

  - Intelligent color assignment minimizes repetition across groups
  - 6 groups get 6 distinct terminal colors
  - 8+ groups use all available colors before repeating
  - Colors sorted by hue for visual consistency

Canvas Abstraction Layer

New R6-based canvas system providing:

  - Pixel-level drawing primitives (points, lines, rectangles, circles,
    polygons)
  - Automatic Braille character composition for smooth curves
  - Support for colored output via ANSI escape codes

Geom Registry

Extensible system for adding custom geom handlers, making it easy to add
support for additional ggplot2 geoms.

Heatmap Support

  - New geom_tile handler for rendering heatmaps
  - Works with continuous color scales (scale_fill_gradient,
    scale_fill_viridis_c, etc.)
  - Supports faceted heatmaps with facet_wrap() and facet_grid()

Improvements

  - Improved Braille bit mapping for more accurate scatter and line
    plots
  - Better color handling for multi-group aesthetics
  - Fixed issues with quosure parsing in aesthetic mappings
  - Fixed axis label formatting (0 now displays as "0", not "0.0e+0")
  - Fixed border overlap issue - data no longer appears on/within
    borders
  - Fixed is_braille error with ANSI color codes

Bug Fixes (Latest)

  - Fixed geom_density not showing distinct colors when using fill
    aesthetic
  - Fixed heatmap legend colors not matching plot colors (legend colors
    now included in color mapping for consistency)
  - Fixed colors not appearing in non-interactive R sessions (Rscript)
    by enabling crayon colors automatically on package load
  - Fixed discrete x-axis labels showing numeric positions instead of
    category names

Documentation

  - Comprehensive vignette: "ggplotcli: Universal ggplot2 to Terminal
    Plotting"
  - Showcase examples demonstrating maximum complexity plots

                 Changes in version 0.1.0 (2024-04-24)                  

  - Initial CRAN release
  - Basic terminal plotting with plotcli R6 class
  - Support for scatter, line, bar, and box plots
  - Basic ggplotcli() function for ggplot2 conversion