ciao!

su una mia app personale ho aggiornato le varie dipendenza e anche l'sdk nel pubspec.yaml:
codice:
name: book_flutter
description: A new Flutter project.


publish_to: 'none' # Remove this line if you wish to publish to pub.dev


version: 1.0.0+2


environment:
  sdk: '>=3.2.0 <4.0.0'


dependencies:
  flutter:
    sdk: flutter


  cupertino_icons: ^1.0.6
  page_transition: ^2.1.0
  http: ^1.1.2
  connectivity_plus: ^5.0.2
  dropdown_search: ^5.0.6
  window_manager: ^0.3.7
  flutter_launcher_icons: ^0.13.1
  animate_do: ^3.1.2


dev_dependencies:
  flutter_test:
    sdk: flutter


  flutter_lints: ^2.0.0


flutter_launcher_icons:
  android: "launcher_icon"
  ios: true
  image_path: "assets/icons/icon.png"
  min_sdk_android: 21 # android min sdk min:16, default 21
  linux:
    generate: true
    image_path: "assets/icons/icon.png"
    icon_size: 180 # min:48, max:256, default: 48
  windows:
    generate: true
    image_path: "assets/icons/icon.png"
    icon_size: 48 # min:48, max:256, default: 48
  macos:
    generate: true
    image_path: "assets/icons/icon.png"


flutter:


  fonts:
    - family: Raleway
      fonts:
        - asset: assets/fonts/Raleway-Regular.ttf
        - asset: assets/fonts/Raleway-Bold.ttf
          weight: 700
da questo momento in poi non si vede più il colore predominante del tema.
ho provato su tutte le piattaforme (mecos,linux,windows,web e android).
la barra del titolo ha lo sfondo bianco.

questo il codice:
codice:
import 'dart:core';
import 'package:flutter/material.dart';
import 'package:window_manager/window_manager.dart';


import './screens/authors_screen.dart';
import './screens/books_screen.dart';
import './screens/form_book_screen.dart';
import './screens/editors_screen.dart';
import 'screens/form_author_screen.dart';
import 'screens/form_editor_screen.dart';
import 'utils/utils.dart';


void main() => runApp(const MyApp());


class MyApp extends StatelessWidget {
  const MyApp({super.key});


  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'MP Book',
      theme: ThemeData(
        fontFamily: 'Raleway',
        primarySwatch: Colors.amber,
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.amber),
        useMaterial3: true,
        textTheme: const TextTheme(
          headlineLarge: TextStyle(fontWeight: FontWeight.bold),
          bodyLarge: TextStyle(
            fontSize: 14.0,
            fontFamily: 'Hind',
            color: Colors.black,
          ),
        ),
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            backgroundColor: Colors.purple,
            foregroundColor: Colors.white,
          ),
        ),
      ),
      initialRoute: '/',
      routes: {
        '/': (ctx) => const BooksScreen(),
        // '/': (ctx) => const AuthorsScreen(),
        AuthorsScreen.routeName: (ctx) => const AuthorsScreen(),
        EditorsScreen.routeName: (ctx) => const EditorsScreen(),
        FormBookScreen.routeName: (ctx) => const FormBookScreen(),
        FormAuthorScreen.routeName: (ctx) => const FormAuthorScreen(),
        FormEditorScreen.routeName: (ctx) => const FormEditorScreen(),
      },
      onUnknownRoute: (settings) {
        return MaterialPageRoute(
          builder: (ctx) => const BooksScreen(),
        );
      },
    );
  }
}
qualche idea??