anchor.diff:  
     /// The style to use for the [helperText].
     ///
  -  /// If [helperStyle] is a [MaterialStateTextStyle], then the effective
  +  /// If `helperStyle` is a [MaterialStateTextStyle], then the effective
     /// text style can depend on the [MaterialState.focused] state, i.e.
     /// if the [TextField] is focused or not.
     final TextStyle? helperStyle;
  
positive.code: 
    /// The style to use for the [suffixText].
    ///
    /// If [suffixStyle] is a [MaterialStateTextStyle], then the effective
    /// text style can depend on the [MaterialState.focused] state, i.e.
    /// if the [TextField] is focused or not.
    ///
    /// If null, defaults to the [hintStyle].
    ///
  
negative.code: 
    /// The style to use for the [counterText].
    ///
    /// If `counterStyle` is a [MaterialStateTextStyle], then the effective
    /// text style can depend on the [MaterialState.focused] state, i.e.
    /// if the [TextField] is focused or not.
    ///
  