anchor.diff:              | Comment -> style.CommentsSingleLine
               | StringLiteral -> style.String
               | NumberLiteral -> style.Number
  +            | PunctuationBrackets -> style.PunctuationForBrackets
  +            | Punctuation -> style.Punctuation
               | Module
               | ActivePatternCase
               | Record
  
positive.code:         | _ -> None
  
      let (|ComputationExpression|_|) ts =
          if isIdentifier ts.TokenColor then
              match ts.SymbolUse with
              | Some symbolUse ->
                  match symbolUse.IsFromComputationExpression with
  
negative.code:         else None
  
      let (|UnusedCode|_|) ts =
          if ts.TokenInfo.ColorClass = TokenColorKind.InactiveCode then Some UnusedCode
          else None
  
      let isAbstractBlockSpan (span: Span) =
  