anchor.diff:              let [<Literal>] IsLarge = "is-large"
               let [<Literal>] IsHalfHeight = "is-halfheight"
               let [<Literal>] IsFullHeight = "is-fullheight"
  +            let [<Literal>] IsFullheightWithNavbar = "is-fullheight-with-navbar"
   
       type Option =
           /// Add `is-bold` class
  
positive.code:         /// Add `is-halfheight` class
          | IsHalfHeight
          /// Add `is-fullheight` class
          | IsFullHeight
          | Color of IColor
          | CustomClass of string
  
negative.code:             | IsLarge -> { result with Size = Classes.Size.IsLarge |> Some }
              | IsHalfHeight -> { result with Size = Classes.Size.IsHalfHeight |> Some }
              | IsFullHeight -> { result with Size = Classes.Size.IsFullHeight |> Some }
              | IsFullheightWithNavbar -> { result with Size = Classes.Size.IsFullheightWithNavbar |> Some }
              | Color color -> { result with Color = ofColor color |> Some }
              | IsBold -> { result with IsBold = true }
              | CustomClass customClass -> { result with CustomClass = Some customClass }
  