subtitleTextStyle property
final
The text style for ListTile's subtitle.
If this property is null, then ListTileThemeData.subtitleTextStyle is used. If that is also null and ThemeData.useMaterial3 is true, TextTheme.bodyMedium with ColorScheme.onSurfaceVariant will be used, otherwise TextTheme.bodyMedium with TextTheme.bodySmall color will be used.
Implementation
final TextStyle? subtitleTextStyle;