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41b1aea281
fixes [`Scrollbar.thickness` property is ignored when the `Scrollbar` is hovered](https://github.com/flutter/flutter/issues/143881) ### Code sample <details> <summary>expand to view the code sample</summary> ```dart import 'package:flutter/material.dart'; void main() => runApp(const MyApp()); class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { final ScrollController scrollController = ScrollController(); return MaterialApp( debugShowCheckedModeBanner: false, home: Material( child: ScrollConfiguration( behavior: const NoScrollbarBehavior(), child: ScrollbarTheme( data: ScrollbarThemeData( thickness: MaterialStateProperty.all(25.0), showTrackOnHover: true, ), child: Scrollbar( thickness: 50.0, thumbVisibility: true, radius: const Radius.circular(3.0), controller: scrollController, child: SingleChildScrollView( controller: scrollController, child: const SizedBox(width: 4000.0, height: 4000.0), ), ), ), ), ), ); } } class NoScrollbarBehavior extends ScrollBehavior { const NoScrollbarBehavior(); @override Widget buildScrollbar( BuildContext context, Widget child, ScrollableDetails details) => child; } ``` </details> ### Preview | Before | After | | --------------- | --------------- | | <img src="https://github.com/flutter/flutter/assets/48603081/3537d60d-a5b2-488d-aa99-4c36c3721657" /> | <img src="https://github.com/flutter/flutter/assets/48603081/cfd02095-a327-4b16-8ece-0d1c9e6813ce" /> | |
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| .. | ||
| flutter | ||
| flutter_driver | ||
| flutter_goldens | ||
| flutter_localizations | ||
| flutter_test | ||
| flutter_tools | ||
| flutter_web_plugins | ||
| fuchsia_remote_debug_protocol | ||
| integration_test | ||
| analysis_options.yaml | ||