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vangogh 0.1.3

New Features

  • Color Vision Deficiency (CVD) Assessment Tools
    • Added check_vangogh_cvd() to simulate how palettes appear under different types of colour blindness (deuteranopia, protanopia, tritanopia) with visual plots and quantitative accessibility scores.
    • Added check_all_vangogh_cvd() for batch checking all palettes and generating comprehensive CVD reports.
    • Added get_cvd_safe_palettes() to filter palettes that meet accessibility thresholds for colourblind users.
    • Added pre-computed vangogh_cvd_scores dataset for quick accessibility lookups without requiring the colorspace package.
    • Added vangogh_palette_info_with_cvd() to enhance palette information with CVD accessibility data.
    • Added print_cvd_badge() for generating markdown badges showing palette accessibility ratings.
    • Added summarize_cvd_accessibility() to create summary tables of CVD metrics across all palettes.

Implementation Details

  • CVD assessment uses CIELAB color space for perceptually uniform distance calculations.
  • All CVD functions use optional dependencies (colorspace) in Suggests, not Imports.
  • Functions include graceful error handling for missing packages.
  • Pre-computed data allows users to access CVD scores without installing colorspace.
  • Migration from colorblindr to colorspace
    • Replaced deprecated colorblindr package with colorspace for CVD simulations.
    • Updated check_palette(), viz_palette(), and compare_palettes() to use colorspace::deutan(), colorspace::protan(), and colorspace::tritan().
    • Implemented manual faceted visualizations to replace colorblindr::cvd_grid() functionality.
    • All CVD simulations now use the actively maintained colorspace package available on CRAN.

Documentation

  • Added comprehensive documentation for all CVD functions with examples.
  • Added 20+ unit tests for CVD functionality with proper error handling.
  • All functions include @importFrom declarations for CRAN compliance.

Bug Fixes

  • Fixed namespace imports for base R functions (graphics, stats, utils).
  • Improved handling of NULL parameters in palette functions.
  • Enhanced error messages for missing dependencies.

vangogh 0.1.2

Major Refactor

  • Major refactor of the package structure and core functionality:
    • Rewrote all R/ scripts for clarity, consistency, and CRAN compliance.
    • Deleted obsolete scripts and consolidated related functions.
    • Updated palette and theme handling to support new variants and features.

Palette Accessibility Enhancements

  • palette_accessibility.R upgraded:
    • vangogh_palette_info() and vangogh_colors() now optionally return HCL hue/chroma/luminance metadata when colorspace is installed.
    • Added vangogh_suggest() to recommend palettes based on required number of colours.
    • Added vangogh_export() for exporting palettes as JSON or CSV.
    • Rewrote compare_palettes() for facet-style comparison with improved .data safety.

Theme Improvements

  • theme_vangogh() now supports variants: "classic", "light", "dark", "sketch".

Functionality Updates

  • safe_vangogh_palette(), viz_palette(), check_palette() refined for colourblind simulation and consistent API.
  • vangogh_palette() retains discrete and continuous interpolation support.
  • Added examples and updated documentation throughout man/ files.

Other

  • README fully updated with new functions, examples, and badges.
  • License clarified: copyright 2022 Cheryl Isabella Lim.

vangogh 0.1.1

  • Initial CRAN submission.