anchor.diff:    /// front of the input. The widget's baseline is lined up with the input
     /// baseline.
     ///
  -  /// Only one of [prefix] and [prefixText] can be specified.
  -  ///
  -  /// The [prefix] appears after the [prefixIcon], if both are specified.
  +  /// Only one of `prefix` and [prefixText] can be specified.
  +  ///
  +  /// The `prefix` appears after the [prefixIcon], if both are specified.
     ///
     /// See also:
     ///
  
positive.code:   /// When [InputDecorator.isHovering] is true, the [hoverColor] is also blended
    /// into the final fill color.
    ///
    /// Typically this field set to true if [border] is an
    /// [UnderlineInputBorder].
    ///
    /// The decoration's container is the area which is filled if [filled] is
    /// true and bordered per the [border]. It's the area adjacent to
    /// [icon] and above the widgets that contain [helperText],
    /// [errorText], and [counterText].
    ///
    /// This property is false by default.
    final bool? filled;
  
    /// The base fill color of the decoration's container color.
    ///
    /// When [InputDecorator.isHovering] is true, the
    /// [hoverColor] is also blended into the final fill color.
    ///
    /// By default the fillColor is based on the current [Theme].
    ///
    /// The decoration's container is the area which is filled if [filled] is true
    /// and bordered per the [border]. It's the area adjacent to [icon] and above
    /// the widgets that contain [helperText], [errorText], and [counterText].
    final Color? fillColor;
  
    /// By default the [focusColor] is based on the current [Theme].
    ///
    /// The decoration's container is the area which is filled if [filled] is
    /// true and bordered per the [border]. It's the area adjacent to
    /// [icon] and above the widgets that contain [helperText],
    /// [errorText], and [counterText].
    final Color? focusColor;
  
    /// The color of the focus highlight for the decoration shown if the container
    /// is being hovered over by a mouse.
    ///
    /// If [filled] is true, the color is blended with [fillColor] and fills the
    /// decoration's container.
    ///
    /// If [filled] is false, and [InputDecorator.isFocused] is false, the color
    /// is blended over the [enabledBorder]'s color.
    ///
    /// By default the [hoverColor] is based on the current [Theme].
    ///
    /// The decoration's container is the area which is filled if [filled] is
    /// true and bordered per the [border]. It's the area adjacent to
    /// [icon] and above the widgets that contain [helperText],
    /// [errorText], and [counterText].
    final Color? hoverColor;
  
    /// The border to display when the [InputDecorator] does not have the focus and
  
negative.code:   /// The prefix text is not returned as part of the user's input.
    ///
    /// If a more elaborate prefix is required, consider using [prefix] instead.
    /// Only one of [prefix] and `prefixText` can be specified.
    ///
    /// The `prefixText` appears after the [prefixIcon], if both are specified.
    ///
    /// See also:
    ///
  