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Related to [Update both `ProgressIndicator` for Material 3 redesign](https://github.com/flutter/flutter/issues/141340) ### 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 StatefulWidget { const MyApp({super.key}); @override State<MyApp> createState() => _MyAppState(); } class _MyAppState extends State<MyApp> { bool isRTL = false; @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, home: Scaffold( body: Directionality( textDirection: isRTL ? TextDirection.rtl : TextDirection.ltr, child: Center( child: Column( spacing: 2.0, mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ const Text('Default LinearProgressIndicator'), const Padding( padding: EdgeInsets.all(16.0), child: LinearProgressIndicator( value: 0.45, ), ), const Text('Default indefinite LinearProgressIndicator'), const Padding( padding: EdgeInsets.all(16.0), child: LinearProgressIndicator(), ), const Text('Updated height and border radius'), Padding( padding: const EdgeInsets.all(16.0), child: LinearProgressIndicator( value: 0.25, minHeight: 16.0, borderRadius: BorderRadius.circular(16.0), ), ), const Text('Updated stop indicator color and radius'), Padding( padding: const EdgeInsets.all(16.0), child: LinearProgressIndicator( value: 0.74, minHeight: 16.0, borderRadius: BorderRadius.circular(16.0), stopIndicatorColor: Theme.of(context).colorScheme.error, stopIndicatorRadius: 32.0, ), ), const Text('Track gap and stop indicator radius set to 0'), Padding( padding: const EdgeInsets.all(16.0), child: LinearProgressIndicator( value: 0.50, minHeight: 16.0, borderRadius: BorderRadius.circular(16.0), trackGap: 0, stopIndicatorRadius: 0, ), ), ], ), ), ), floatingActionButton: FloatingActionButton.extended( onPressed: () { setState(() { isRTL = !isRTL; }); }, label: const Text('Toggle Direction'), ), ), ); } } ``` </details> ### Preview <img width="824" alt="Screenshot 2024-09-09 at 13 53 10" src="https://github.com/user-attachments/assets/d12e56a5-f196-4011-8266-c7ab96be96b2">
Token Defaults Generator
Script that generates component theme data defaults based on token data.
Usage
Run this program from the root of the git repository:
dart dev/tools/gen_defaults/bin/gen_defaults.dart [-v]
This updates generated/used_tokens.csv and the various component theme files.
Templates
There is a template file for every component that needs defaults from
the token database. These templates are implemented as subclasses of
TokenTemplate. This base class provides some utilities and a structure
for adding a new block of generated code to the bottom of a given file.
Templates need to override the generate method to provide the generated
code block as a string.
See lib/fab_template.dart for an example that generates defaults for the
Floating Action Button.
Tokens
Tokens are stored in JSON files in data/, and are sourced from
an internal Google database.
template.dart should provide nearly all useful token resolvers
(e.g. color, shape, etc.). For special cases in which one shouldn't
be defined, use getToken to get the raw token value. The script, through
the various revolvers and getToken, validates tokens, keeps track of
which tokens are used, and generates generated/used_tokens.csv.