ca5aa2329a
fixes https://github.com/flutter/flutter/issues/128569 <details> <summary>code sample</summary> ```dart import 'package:flutter/material.dart'; void main() { runApp(const ListTileApp()); } class ListTileApp extends StatelessWidget { const ListTileApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( useMaterial3: true, colorScheme: ColorScheme.fromSeed(seedColor: Colors.red).copyWith( onSurface: Colors.yellow, onSurfaceVariant: Colors.green, ), ), home: const Scaffold( body: Center( child: ListTile( title: Text('title'), subtitle: Text('subtitle'), ), ), ), ); } } ``` </details> # Description M3 ListTile couldn't be customized using `ColorScheme` colors. - This PR updates the list tile text defaults to `ColorScheme` text color tokens. - Improved the `ListTile` template to use the token group. - Update docs and tests. ```dart colorScheme: ColorScheme.fromSeed(seedColor: Colors.red).copyWith( onSurface: Colors.yellow, onSurfaceVariant: Colors.green, ), ``` ### Before  ### After 
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.