anchor.diff:          | IsHiddenOnly of Screen * bool
           | IsSrOnly
           | IsScreenReaderOnly
  +        | Spacing of Spacing.TypeAndDirection * Spacing.Amount
   
       let parseModifiers options =
           let parseOptions result option =
  
positive.code:         | x ->
              Fable.Core.JS.console.warn("Screen `%s` does not support display only." + string x)
              ""
  
  [<RequireQualifiedAccess>]
  module Modifier =
  
negative.code:             | IsShadowless
              | IsUnselectable
              | IsRelative -> (Reflection.getCaseName option)::result
              | Spacing (typ, amount) -> (Spacing.toSpacingClass typ amount)::result
  
          options |> List.fold parseOptions []
  
  