anchor.diff:  
   /// An immutable style in which paint text.
   ///
  +/// ### Bold
  +///
   /// {@tool sample}
  -///
  -/// ### Bold
  -///
   /// Here, a single line of text in a [Text] widget is given a specific style
   /// override. The style is mixed with the ambient [DefaultTextStyle] by the
   /// [Text] widget.
  
positive.code: /// In this case, since the app locally defines the font, the TextStyle is
  /// created without the `package` argument:
  ///
  /// ```dart
  /// const TextStyle(fontFamily: 'Raleway')
  /// ```
  ///
  /// See also:
  ///
  
negative.code: ///   ),
  /// )
  /// ```
  /// {@end-tool}
  ///
  /// ### Custom Fonts
  ///
  