Extension on Flutter `BuildContext` to make it easier to access `TextTheme`, FontSizes and FontWeight for TextStyles based on Material 3 Design System

text_size.dart

/// Extension on [BuildContext] to make it easier to access [TextTheme]
/// FontSizes and FontWeight for TextStyles based on Material 3 Design System
/// https://m3.material.io/styles/typography/type-scale-tokens

extension TextSize on BuildContext {
  ThemeData get theme => Theme.of(this);
  TextTheme get textTheme => theme.textTheme;

  /// FontSize = 57, FontWeight = 400
  TextStyle? get displayLarge => textTheme.displayLarge;

  /// FontSize = 52, FontWeight = 400
  TextStyle? get displayMedium => textTheme.displayMedium;

  /// FontSize = 44, FontWeight = 400
  TextStyle? get displaySmall => textTheme.displaySmall;

  /// FontSize = 32, FontWeight = 400
  TextStyle? get headlineLarge => textTheme.headlineLarge;

  /// FontSize = 28, FontWeight = 400
  TextStyle? get headlineMedium => textTheme.headlineMedium;

  /// FontSize = 24, FontWeight = 400
  TextStyle? get headlineSmall => textTheme.headlineSmall;

  /// FontSize = 22, FontWeight = 400
  TextStyle? get titleLarge => textTheme.titleLarge;

  /// FontSize = 16, FontWeight = 500
  TextStyle? get titleMedium => textTheme.titleMedium;

  /// FontSize = 14, FontWeight = 500
  TextStyle? get titleSmall => textTheme.titleSmall;

  /// FontSize = 14, FontWeight = 500
  TextStyle? get labelLarge => textTheme.labelLarge;

  /// FontSize = 12, FontWeight = 500
  TextStyle? get labelMedium => textTheme.labelMedium;

  /// FontSize = 11, FontWeight = 500
  TextStyle? get labelSmall => textTheme.labelSmall;

  /// FontSize = 16, FontWeight = 400
  TextStyle? get bodyLarge => textTheme.bodyLarge;

  /// FontSize = 14, FontWeight = 400
  TextStyle? get bodyMedium => textTheme.bodyMedium;

  /// FontSize = 12, FontWeight = 400
  TextStyle? get bodySmall => textTheme.bodySmall;
}