1. Colourful🎨 Open source .NET library for working with color spaces.
2. Rationals🔟 Implementation of rational number arithmetic for .NET with arbitrary precision.
4. NaturalSort.Extension🔀 Extension method for StringComparison that adds support for natural sorting (e.g. "abc1", "abc2", "abc10" instead of "abc1", "abc10", "abc2").