Implementation of DSColors with distinct properties

DesignSystem.DSColors.swift

public struct DSColors<Color: ColorType>: ColorProvider {

  public var primary: ColorScale<Color> {
    ColorScale {
      transformHandler("primary.\(%0)")
    }
  }

  public var complementary: ColorStyle<Color> {
    ColorStyle {
      transformHandler("complementary.\(%0)")
    }
  }

  public var neutral: ColorVariant<ColorScale<Color>> {
    ColorVariant { variant in
      ColorScale { scale in
        transformHandler("neutral.\(variant).\(scale)")
      }
    }
  }
}