4.2.0

Added

• High-performance StyledStringBuilder API for efficient string chaining (#78)
• HSL (Hue, Saturation, Lightness) color support with RGB conversion (#80)
• Strikethrough style support with ANSI escape sequences (#82)
• Conditional styling feature allowing styles based on conditions (#81)
• Batch operations API for better performance when applying multiple styles (#78)
• Comprehensive performance testing framework (#78)
• Performance optimization guide documentation (#78)

Fixed

• Memory efficiency improvements in StringGenerator (#78)
• Performance optimizations for chained style operations (#78)
• Improved test coverage with comprehensive edge case tests (#79)