v0.2.0 - Extended Color Database

col2hex2col 0.2.0

Major Features

• Extended Color Database: Package now supports over 32,000 color names!

  • 657 R built-in colors (backward compatible)
  • 31,852 colors from the color-names database (MIT license)
  • Total: 32,462 unique color names, 32,161 unique hex codes

• Enhanced color_to_hex(): Now accepts color names from the extended database

  • Case-insensitive matching ("red", "Red", "RED" all work)
  • Whitespace trimming
  • Examples: "sunset orange", "arctic ocean", "forest green"

• Enhanced hex_to_color(): Intelligently selects color names with prioritization

  • R colors are always prioritized when available
  • For non-R colors, returns the shortest available name
  • Significantly increased hex code coverage (from ~650 to 32,161)

Breaking Changes

• None - fully backward compatible with v0.1.x
• All existing code using R colors will work unchanged
• R colors are prioritized in all lookups

Performance Improvements

• Replaced dynamic color lookup with pre-built internal databases
• Removed dependency on grDevices functions for lookups
• Fast constant-time lookup using named vectors stored in R/sysdata.rda

Documentation

• Updated all function documentation to reflect extended database
• Added examples using extended color names
• Updated package description and README
• Enhanced package-level documentation with key features

Testing

• Added 22 new tests for extended color functionality
• All 67 tests passing
• Tests cover backward compatibility, case insensitivity, and extended colors

Internal Changes

• Added data-raw/prepare_colornames.R script for data preparation
• Internal data stored in R/sysdata.rda (~650KB)
• Removed grDevices from Imports (no longer needed)