/// 
/// {@tool sample}
/// Each line in this example is progressively more opaque. The base color is
/// [material.Colors.black], and [Color.withOpacity] is used to create a
/// derivative color with the desired opacity.
///
/// ```dart
/// RichText(
/// text: TextSpan(
/// style: DefaultTextStyle.of(context).style,
/// Text.rich(
/// TextSpan(
/// children: <TextSpan>[
/// TextSpan(
/// text: 'You don\'t have the votes.\n',
...
...
@@ -96,7 +90,10 @@ const String _kColorBackgroundWarning = 'Cannot provide both a backgroundColor a
/// 
///
/// See [StrutStyle] for further control of line height at the paragraph level.
///
/// ### Wavy red underline with black text
/// ## Wavy red underline with black text
///
/// {@tool sample}
/// Styles can be combined. In this example, the misspelt word is drawn in black
/// text and underlined with a wavy red line to indicate a spelling error. (The
/// remainder is styled according to the Flutter default text styles, not the
/// ambient [DefaultTextStyle], since no explicit style is given and [RichText]
/// does not automatically use the ambient [DefaultTextStyle].)
/// text and underlined with a wavy red line to indicate a spelling error.
///
/// 
///
/// ```dart
/// RichText(
/// text: TextSpan(
/// Text.rich(
/// TextSpan(
/// text: 'Don\'t tax the South ',
/// children: <TextSpan>[
/// TextSpan(
...
...
@@ -178,7 +172,7 @@ const String _kColorBackgroundWarning = 'Cannot provide both a backgroundColor a
/// ```
/// {@end-tool}
///
/// ### Borders and stroke (Foreground)
/// ## Borders and stroke (Foreground)
///
/// {@tool sample}
/// To create bordered text, a [Paint] with [Paint.style] set to [PaintingStyle.stroke]
...
...
@@ -214,7 +208,7 @@ const String _kColorBackgroundWarning = 'Cannot provide both a backgroundColor a
/// ```
/// {@end-tool}
///
/// ### Gradients (Foreground)
/// ## Gradients (Foreground)
///
/// {@tool sample}
/// The [foreground] property also allows effects such as gradients to be
...
...
@@ -242,7 +236,31 @@ const String _kColorBackgroundWarning = 'Cannot provide both a backgroundColor a
/// ```
/// {@end-tool}
///
/// ### Custom Fonts
/// ## Font features
///
/// Some fonts can be configured in quite fine detail. To provide access to
/// these configuration options, [FontFeature] tags can be specified using the
/// [fontFeatures] property.
///
/// {@tool sample}
/// In this example, the fictional font "JeffersonCombined" is known to contain
/// both roman and italics characters, and the italics characters are selected
/// using the `ital` font feature.
///
/// ```dart
/// Text.rich(
/// TextSpan(
/// text: 'In Virginia, we plant seeds in the ground',
