ColorVariant is a provider that implements intermediate properties

DesignSystem.ColorVariant.swift

public struct ColorVariant<Provider: ColorProvider>: ColorProvider {
  public typealias Color = Provider.Color
  
  public var xs: Provider {
    transformHandler("xs")
  }
  
  public var md: Provider {
    transformHandler("md")
  }
  
  public var xl: Provider {
    transformHandler("xl")
  }
}