neon, app: migrate branding into the theme

packages/app/integration_test/screenshot_test.dart

@@ -95,7 +95,7 @@ Future runTestApp(
 }) async {
   await runNeon(
     getAppImplementations: getAppImplementations,
-    branding: getNeonBranding(),
+    theme: neonTheme,
     bindingOverride: binding,
     sharedPreferencesOverride: MemorySharedPreferences(),
     account: account,

packages/app/lib/branding.dart

@@ -1,12 +1,23 @@
+import 'dart:ui';
+
 import 'package:flutter_svg/flutter_svg.dart';
-import 'package:neon/models.dart';
+import 'package:neon/theme.dart';
-
+
-Branding getNeonBranding() => Branding(
+final neonTheme = NeonTheme(
-      name: 'Nextcloud Neon',
+  branding: branding,
-      logo: SvgPicture.asset(
+  colorScheme: colorScheme,
-        'assets/logo.svg',
+);
-        width: 100,
+
-        height: 100,
+final branding = Branding(
-      ),
+  name: 'Nextcloud Neon',
-      legalese: 'Copyright © 2023, provokateurin\nUnder GPLv3 license',
+  logo: SvgPicture.asset(
-    );
+    'assets/logo.svg',
+    width: 100,
+    height: 100,
+  ),
+  legalese: 'Copyright © 2023, provokateurin\nUnder GPLv3 license',
+);
+
+const colorScheme = NeonColorScheme(
+  primary: Color(0xFFF37736),
+);

packages/app/lib/main.dart

@@ -5,6 +5,6 @@ import 'package:neon/neon.dart';
 Future main() async {
   await runNeon(
     getAppImplementations: getAppImplementations,
-    branding: getNeonBranding(),
+    theme: neonTheme,
   );
 }

packages/neon/neon/lib/models.dart

@@ -1,4 +1,3 @@
 export 'package:neon/src/models/account.dart';
 export 'package:neon/src/models/app_implementation.dart';
-export 'package:neon/src/models/branding.dart';
 export 'package:neon/src/models/notifications_interface.dart';

packages/neon/neon/lib/neon.dart

@@ -10,8 +10,8 @@ import 'package:neon/src/blocs/next_push.dart';
 import 'package:neon/src/blocs/push_notifications.dart';
 import 'package:neon/src/models/account.dart';
 import 'package:neon/src/models/app_implementation.dart';
-import 'package:neon/src/models/branding.dart';
 import 'package:neon/src/platform/platform.dart';
+import 'package:neon/src/theme/neon.dart';
 import 'package:neon/src/utils/global_options.dart';
 import 'package:neon/src/utils/request_manager.dart';
 import 'package:package_info_plus/package_info_plus.dart';
@@ -24,7 +24,7 @@ late final String neonUserAgent;
 Future runNeon({
   required final Iterable<AppImplementation> Function(SharedPreferences, RequestManager, NeonPlatform)
       getAppImplementations,
-  required final Branding branding,
+  required final NeonTheme theme,
   final WidgetsBinding? bindingOverride,
   final SharedPreferences? sharedPreferencesOverride,
   final Account? account,
@@ -115,11 +115,8 @@ Future runNeon({
         Provider<PackageInfo>(
           create: (final _) => packageInfo,
         ),
-        Provider<Branding>(
-          create: (final _) => branding,
-        ),
       ],
-      child: const NeonApp(),
+      child: NeonApp(neonTheme: theme),
     ),
   );
 }

packages/neon/neon/lib/src/app.dart

@@ -16,11 +16,12 @@ import 'package:neon/src/models/push_notification.dart';
 import 'package:neon/src/platform/platform.dart';
 import 'package:neon/src/router.dart';
 import 'package:neon/src/settings/widgets/option_builder.dart';
+import 'package:neon/src/theme/neon.dart';
+import 'package:neon/src/theme/theme.dart';
 import 'package:neon/src/utils/global.dart';
 import 'package:neon/src/utils/global_options.dart';
 import 'package:neon/src/utils/localizations.dart';
 import 'package:neon/src/utils/push_utils.dart';
-import 'package:neon/src/utils/theme.dart';
 import 'package:provider/provider.dart';
 import 'package:quick_actions/quick_actions.dart';
 import 'package:tray_manager/tray_manager.dart' as tray;
@@ -28,9 +29,12 @@ import 'package:window_manager/window_manager.dart';
 
 class NeonApp extends StatefulWidget {
   const NeonApp({
+    required this.neonTheme,
     super.key,
   });
 
+  final NeonTheme neonTheme;
+
   @override
   State<NeonApp> createState() => _NeonAppState();
 }
@@ -291,6 +295,7 @@ class _NeonAppState extends State<NeonApp> with WidgetsBindingObserver, tray.Tra
                       keepOriginalAccentColor: themeKeepOriginalAccentColor,
                       oledAsDark: themeOLEDAsDark,
                       appThemes: _appImplementations.map((final a) => a.theme).whereNotNull(),
+                      neonTheme: widget.neonTheme,
                     );
 
                     return MaterialApp.router(

packages/neon/neon/lib/src/models/branding.dart

@@ -1,16 +0,0 @@
-import 'package:flutter/widgets.dart';
-
-@immutable
-class Branding {
-  const Branding({
-    required this.name,
-    required this.logo,
-    this.legalese,
-  });
-
-  final String name;
-
-  final Widget logo;
-
-  final String? legalese;
-}

packages/neon/neon/lib/src/pages/login.dart

@@ -1,11 +1,10 @@
 import 'package:flutter/material.dart';
 import 'package:neon/l10n/localizations.dart';
-import 'package:neon/src/models/branding.dart';
 import 'package:neon/src/router.dart';
-import 'package:neon/src/utils/theme.dart';
+import 'package:neon/src/theme/branding.dart';
+import 'package:neon/src/theme/dialog.dart';
 import 'package:neon/src/utils/validators.dart';
 import 'package:neon/src/widgets/nextcloud_logo.dart';
-import 'package:provider/provider.dart';
 
 class LoginPage extends StatefulWidget {
   const LoginPage({
@@ -52,7 +51,7 @@ class _LoginPageState extends State<LoginPage> {
 
   @override
   Widget build(final BuildContext context) {
-    final branding = Provider.of<Branding>(context, listen: false);
+    final branding = Branding.of(context);
     return Scaffold(
       resizeToAvoidBottomInset: true,
       appBar: AppBar(
@@ -76,10 +75,12 @@ class _LoginPageState extends State<LoginPage> {
                   const SizedBox(
                     height: 30,
                   ),
-                  Text(AppLocalizations.of(context).loginWorksWith),
+                  if (branding.showLoginWithNextcloud) ...[
-                  const SizedBox(
+                    Text(AppLocalizations.of(context).loginWorksWith),
-                    height: 20,
+                    const SizedBox(
-                  ),
+                      height: 20,
+                    ),
+                  ],
                   const NextcloudLogo(),
                   Form(
                     key: _formKey,

packages/neon/neon/lib/src/pages/login_check_account.dart

@@ -6,7 +6,7 @@ import 'package:neon/src/blocs/accounts.dart';
 import 'package:neon/src/blocs/login_check_account.dart';
 import 'package:neon/src/models/account.dart';
 import 'package:neon/src/router.dart';
-import 'package:neon/src/utils/theme.dart';
+import 'package:neon/src/theme/dialog.dart';
 import 'package:neon/src/widgets/account_tile.dart';
 import 'package:neon/src/widgets/exception.dart';
 import 'package:neon/src/widgets/linear_progress_indicator.dart';

packages/neon/neon/lib/src/pages/login_check_server_status.dart

@@ -3,7 +3,7 @@ import 'package:neon/l10n/localizations.dart';
 import 'package:neon/src/bloc/result.dart';
 import 'package:neon/src/bloc/result_builder.dart';
 import 'package:neon/src/blocs/login_check_server_status.dart';
-import 'package:neon/src/utils/theme.dart';
+import 'package:neon/src/theme/dialog.dart';
 import 'package:neon/src/widgets/exception.dart';
 import 'package:neon/src/widgets/linear_progress_indicator.dart';
 import 'package:neon/src/widgets/validation_tile.dart';

packages/neon/neon/lib/src/pages/settings.dart

@@ -8,7 +8,6 @@ import 'package:neon/l10n/localizations.dart';
 import 'package:neon/src/blocs/accounts.dart';
 import 'package:neon/src/models/account.dart';
 import 'package:neon/src/models/app_implementation.dart';
-import 'package:neon/src/models/branding.dart';
 import 'package:neon/src/platform/platform.dart';
 import 'package:neon/src/router.dart';
 import 'package:neon/src/settings/widgets/account_settings_tile.dart';
@@ -19,6 +18,7 @@ import 'package:neon/src/settings/widgets/settings_category.dart';
 import 'package:neon/src/settings/widgets/settings_list.dart';
 import 'package:neon/src/settings/widgets/settings_tile.dart';
 import 'package:neon/src/settings/widgets/text_settings_tile.dart';
+import 'package:neon/src/theme/branding.dart';
 import 'package:neon/src/utils/confirmation_dialog.dart';
 import 'package:neon/src/utils/global_options.dart';
 import 'package:neon/src/utils/save_file.dart';
@@ -228,7 +228,7 @@ class _SettingsPageState extends State<SettingsPage> {
                         ),
                         title: Text(AppLocalizations.of(context).licenses),
                         onTap: () async {
-                          final branding = Provider.of<Branding>(context, listen: false);
+                          final branding = Branding.of(context);
                           showLicensePage(
                             context: context,
                             applicationName: branding.name,

packages/neon/neon/lib/src/theme/branding.dart

@@ -0,0 +1,66 @@
+import 'package:flutter/material.dart';
+import 'package:neon/src/theme/neon.dart';
+
+/// Custom app branding
+///
+/// Descendant widgets obtain the current [Branding] object using
+/// `Branding.of(context)`. Instances of [Branding] can be customized with
+/// [Branding.copyWith].
+@immutable
+class Branding {
+  /// Creates a custom branding
+  const Branding({
+    required this.name,
+    required this.logo,
+    this.legalese,
+    this.showLoginWithNextcloud = false,
+  });
+
+  /// App name
+  final String name;
+
+  /// Logo of the app shown on various places in the app.
+  final Widget logo;
+
+  /// A string to show in small print.
+  ///
+  /// Typically this is a copyright notice shown as the [AboutDialog.applicationLegalese].
+  final String? legalese;
+
+  /// Whether to show the Nextcloud logo on the LoginPage
+  final bool showLoginWithNextcloud;
+
+  /// Creates a copy of this object but with the given fields replaced with the
+  /// new values.
+  Branding copyWith({
+    final String? name,
+    final Widget? logo,
+    final String? legalese,
+  }) =>
+      Branding(
+        name: name ?? this.name,
+        logo: logo ?? this.logo,
+        legalese: legalese ?? this.legalese,
+      );
+
+  /// The data from the closest [Branding] instance given the build context.
+  static Branding of(final BuildContext context) => Theme.of(context).extension<NeonTheme>()!.branding;
+
+  @override
+  int get hashCode => Object.hashAll([
+        name,
+        logo,
+        legalese,
+      ]);
+
+  @override
+  bool operator ==(final Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    if (other.runtimeType != runtimeType) {
+      return false;
+    }
+    return other is Branding && name == other.name && logo == other.logo && legalese == other.legalese;
+  }
+}

packages/neon/neon/lib/src/theme/color_scheme.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+import 'package:neon/src/theme/colors.dart';
+import 'package:neon/src/theme/neon.dart';
+
+/// A ColorScheme used in the [NeonTheme].
+@immutable
+class NeonColorScheme {
+  const NeonColorScheme({
+    this.primary = NcColors.primary,
+  });
+
+  /// Primary color used throughout the app.
+  ///
+  /// See [ColorScheme.primary]
+  final Color primary;
+
+  /// Creates a copy of this object but with the given fields replaced with the
+  /// new values.
+  NeonColorScheme copyWith({
+    final Color? primary,
+    final Color? oledBackground,
+  }) =>
+      NeonColorScheme(
+        primary: primary ?? this.primary,
+      );
+
+  /// The data from the closest [NeonColorScheme] instance given the build context.
+  static NeonColorScheme of(final BuildContext context) => Theme.of(context).extension<NeonTheme>()!.colorScheme;
+
+  /// Linearly interpolate between two [NeonColorScheme]s.
+  ///
+  /// {@macro dart.ui.shadow.lerp}
+  // ignore: prefer_constructors_over_static_methods
+  static NeonColorScheme lerp(final NeonColorScheme a, final NeonColorScheme b, final double t) {
+    if (identical(a, b)) {
+      return a;
+    }
+    return NeonColorScheme(
+      primary: Color.lerp(a.primary, b.primary, t)!,
+    );
+  }
+
+  @override
+  int get hashCode => Object.hashAll([
+        primary,
+      ]);
+
+  @override
+  bool operator ==(final Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    if (other.runtimeType != runtimeType) {
+      return false;
+    }
+    return other is NeonColorScheme && other.primary == primary;
+  }
+}

packages/neon/neon/lib/src/theme/colors.dart

@@ -0,0 +1,16 @@
+import 'package:flutter/material.dart';
+
+/// [Color] constants which represent Nextcloud's
+/// [color palette](https://docs.nextcloud.com/server/latest/developer_manual/design/foundations.html#color).
+abstract final class NcColors {
+  /// Nextcloud blue.
+  ///
+  /// The default primary clolor as specified by the
+  /// [design guidlines](https://docs.nextcloud.com/server/latest/developer_manual/design/foundations.html#primary-color).
+  static const Color primary = Color(0xFF0082C9);
+
+  /// The [ColorScheme.background] color used on OLED devices.
+  ///
+  /// This color is only used at the users discretion.
+  static const Color oledBackground = Colors.black;
+}

packages/neon/neon/lib/src/theme/dialog.dart

@@ -0,0 +1,64 @@
+import 'package:flutter/material.dart';
+import 'package:neon/src/theme/neon.dart';
+import 'package:neon/src/widgets/dialog.dart';
+
+/// Defines a theme for [NeonDialog] widgets.
+///
+/// Descendant widgets obtain the current [NeonDialogTheme] object using
+/// `NeonDialogTheme.of(context)`. Instances of [NeonDialogTheme] can be customized with
+/// [NeonDialogTheme.copyWith].
+@immutable
+class NeonDialogTheme {
+  /// Creates a dialog theme that can be used for [NeonTheme.dialogTheme].
+  const NeonDialogTheme({
+    this.constraints = const BoxConstraints(
+      minWidth: 280,
+      maxWidth: 560,
+    ),
+  });
+
+  /// Used to configure the [BoxConstraints] for the [NeonDialog] widget.
+  ///
+  /// This value should also be used on [Dialog.fullscreen] and other similar pages.
+  /// By default it follows the default [m3 dialog specification](https://m3.material.io/components/dialogs/specs).
+  final BoxConstraints constraints;
+
+  /// Creates a copy of this object but with the given fields replaced with the
+  /// new values.
+  NeonDialogTheme copyWith({
+    final BoxConstraints? constraints,
+  }) =>
+      NeonDialogTheme(
+        constraints: constraints ?? this.constraints,
+      );
+
+  /// The data from the closest [NeonDialogTheme] instance given the build context.
+  static NeonDialogTheme of(final BuildContext context) => Theme.of(context).extension<NeonTheme>()!.dialogTheme;
+
+  /// Linearly interpolate between two [NeonDialogTheme]s.
+  ///
+  /// {@macro dart.ui.shadow.lerp}
+  // ignore: prefer_constructors_over_static_methods
+  static NeonDialogTheme lerp(final NeonDialogTheme a, final NeonDialogTheme b, final double t) {
+    if (identical(a, b)) {
+      return a;
+    }
+    return NeonDialogTheme(
+      constraints: BoxConstraints.lerp(a.constraints, b.constraints, t)!,
+    );
+  }
+
+  @override
+  int get hashCode => constraints.hashCode;
+
+  @override
+  bool operator ==(final Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    if (other.runtimeType != runtimeType) {
+      return false;
+    }
+    return other is NeonDialogTheme && other.constraints == constraints;
+  }
+}

packages/neon/neon/lib/src/theme/neon.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+import 'package:neon/src/theme/branding.dart';
+import 'package:neon/src/theme/color_scheme.dart';
+import 'package:neon/src/theme/dialog.dart';
+import 'package:neon/src/widgets/dialog.dart';
+
+/// Defines the configuration of the overall visual [Theme] for the app
+/// or a widget subtree within the app.
+///
+/// It is typically only needed to provide a [branding].
+@immutable
+class NeonTheme extends ThemeExtension<NeonTheme> {
+  /// Create a [NeonTheme] that's used to configure a [Theme].
+  const NeonTheme({
+    required this.branding,
+    this.colorScheme = const NeonColorScheme(),
+    this.dialogTheme = const NeonDialogTheme(),
+  });
+
+  /// A theme for customizing the Branding of the app.
+  ///
+  /// This is the value returned from [Branding.of].
+  final Branding branding;
+
+  /// A color scheme for customizing the default appearance of the app.
+  ///
+  /// This is the value returned from [NeonColorScheme.of].
+  final NeonColorScheme colorScheme;
+
+  /// A theme for customizing the visual properties of [NeonDialog]s.
+  ///
+  /// This is the value returned from [NeonDialogTheme.of].
+  final NeonDialogTheme dialogTheme;
+
+  @override
+  NeonTheme copyWith({
+    final Branding? branding,
+    final NeonColorScheme? colorScheme,
+    final NeonDialogTheme? dialogTheme,
+  }) =>
+      NeonTheme(
+        branding: branding ?? this.branding,
+        colorScheme: colorScheme ?? this.colorScheme,
+        dialogTheme: dialogTheme ?? this.dialogTheme,
+      );
+
+  @override
+  NeonTheme lerp(final NeonTheme? other, final double t) {
+    if (other is! NeonTheme) {
+      return this;
+    }
+    return NeonTheme(
+      branding: branding,
+      colorScheme: NeonColorScheme.lerp(colorScheme, other.colorScheme, t),
+      dialogTheme: NeonDialogTheme.lerp(dialogTheme, other.dialogTheme, t),
+    );
+  }
+}

packages/neon/neon/lib/src/theme/theme.dart

@@ -0,0 +1,68 @@
+import 'package:flutter/material.dart';
+import 'package:meta/meta.dart';
+import 'package:neon/src/theme/colors.dart';
+import 'package:neon/src/theme/neon.dart';
+import 'package:neon/src/utils/hex_color.dart';
+import 'package:nextcloud/nextcloud.dart';
+
+@internal
+@immutable
+class AppTheme {
+  const AppTheme(
+    this.nextcloudTheme, {
+    required this.neonTheme,
+    final bool keepOriginalAccentColor = false,
+    this.oledAsDark = false,
+    this.appThemes,
+  }) : keepOriginalAccentColor = nextcloudTheme == null || keepOriginalAccentColor;
+
+  final CoreServerCapabilities_Ocs_Data_Capabilities_Theming? nextcloudTheme;
+  final bool keepOriginalAccentColor;
+  final bool oledAsDark;
+  final Iterable<ThemeExtension>? appThemes;
+  final NeonTheme neonTheme;
+
+  ColorScheme _buildColorScheme(final Brightness brightness) {
+    final primary = nextcloudTheme?.color != null ? HexColor(nextcloudTheme!.color!) : neonTheme.colorScheme.primary;
+    final keepOriginalAccentColorOverride = keepOriginalAccentColor ? primary : null;
+    final oledBackgroundOverride = oledAsDark && brightness == Brightness.dark ? NcColors.oledBackground : null;
+
+    return ColorScheme.fromSeed(
+      seedColor: primary,
+      brightness: brightness,
+    ).copyWith(
+      background: oledBackgroundOverride,
+      primary: keepOriginalAccentColorOverride,
+      secondary: keepOriginalAccentColorOverride,
+    );
+  }
+
+  ThemeData _getTheme(final Brightness brightness) {
+    final colorScheme = _buildColorScheme(brightness);
+
+    return ThemeData(
+      useMaterial3: true,
+      colorScheme: colorScheme,
+      scaffoldBackgroundColor: colorScheme.background,
+      cardColor: colorScheme.background, // For LicensePage
+      snackBarTheme: _snackBarTheme,
+      dividerTheme: _dividerTheme,
+      extensions: [
+        neonTheme,
+        ...?appThemes,
+      ],
+    );
+  }
+
+  ThemeData get lightTheme => _getTheme(Brightness.light);
+  ThemeData get darkTheme => _getTheme(Brightness.dark);
+
+  static const _snackBarTheme = SnackBarThemeData(
+    behavior: SnackBarBehavior.floating,
+  );
+
+  static const _dividerTheme = DividerThemeData(
+    thickness: 1.5,
+    space: 30,
+  );
+}

packages/neon/neon/lib/src/utils/push_utils.dart

@@ -14,10 +14,10 @@ import 'package:neon/src/models/account.dart';
 import 'package:neon/src/models/push_notification.dart';
 import 'package:neon/src/platform/platform.dart';
 import 'package:neon/src/settings/models/storage.dart';
+import 'package:neon/src/theme/colors.dart';
 import 'package:neon/src/utils/global.dart';
 import 'package:neon/src/utils/localizations.dart';
 import 'package:neon/src/utils/request_manager.dart';
-import 'package:neon/src/utils/theme.dart';
 import 'package:nextcloud/nextcloud.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -124,7 +124,7 @@ class PushUtils {
               Canvas(recorder)
                 ..scale(scale)
                 ..drawPicture(pictureInfo.picture)
-                ..drawColor(themePrimaryColor, BlendMode.srcIn);
+                ..drawColor(NcColors.primary, BlendMode.srcIn);
 
               pictureInfo.picture.dispose();
 
@@ -164,7 +164,7 @@ class PushUtils {
                 icon: '@mipmap/ic_launcher',
                 largeIcon: largeIconBitmap,
                 when: when?.millisecondsSinceEpoch,
-                color: themePrimaryColor,
+                color: NcColors.primary,
                 category: pushNotification.type == 'voip' ? AndroidNotificationCategory.call : null,
                 importance: Importance.max,
                 priority: pushNotification.priority == 'high'

packages/neon/neon/lib/src/utils/theme.dart

@@ -1,164 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:meta/meta.dart';
-import 'package:neon/src/utils/hex_color.dart';
-import 'package:neon/src/widgets/dialog.dart';
-import 'package:nextcloud/nextcloud.dart';
-
-@internal
-const themePrimaryColor = Color(0xFFF37736);
-
-@internal
-@immutable
-class AppTheme {
-  AppTheme(
-    this.nextcloudTheme, {
-    final bool keepOriginalAccentColor = false,
-    this.oledAsDark = false,
-    this.appThemes,
-  }) : keepOriginalAccentColor = nextcloudTheme == null || keepOriginalAccentColor;
-
-  final CoreServerCapabilities_Ocs_Data_Capabilities_Theming? nextcloudTheme;
-  final bool keepOriginalAccentColor;
-  final bool oledAsDark;
-  final Iterable<ThemeExtension>? appThemes;
-
-  late final _primaryColor = nextcloudTheme?.color != null ? HexColor(nextcloudTheme!.color!) : themePrimaryColor;
-  late final _keepOriginalAccentColorOverride = keepOriginalAccentColor ? _primaryColor : null;
-
-  ColorScheme _buildColorScheme(final Brightness brightness) {
-    final oledBackgroundOverride = oledAsDark && brightness == Brightness.dark ? Colors.black : null;
-
-    return ColorScheme.fromSeed(
-      seedColor: _primaryColor,
-      brightness: brightness,
-    ).copyWith(
-      background: oledBackgroundOverride,
-      primary: _keepOriginalAccentColorOverride,
-      secondary: _keepOriginalAccentColorOverride,
-    );
-  }
-
-  ThemeData _getTheme(final Brightness brightness) {
-    final colorScheme = _buildColorScheme(brightness);
-
-    return ThemeData(
-      useMaterial3: true,
-      colorScheme: colorScheme,
-      scaffoldBackgroundColor: colorScheme.background,
-      cardColor: colorScheme.background, // For LicensePage
-      snackBarTheme: _snackBarTheme,
-      dividerTheme: _dividerTheme,
-      extensions: [
-        const NeonTheme(),
-        ...?appThemes,
-      ],
-    );
-  }
-
-  ThemeData get lightTheme => _getTheme(Brightness.light);
-  ThemeData get darkTheme => _getTheme(Brightness.dark);
-
-  static const _snackBarTheme = SnackBarThemeData(
-    behavior: SnackBarBehavior.floating,
-  );
-
-  static const _dividerTheme = DividerThemeData(
-    thickness: 1.5,
-    space: 30,
-  );
-}
-
-/// Defines the configuration of the overall visual [Theme] for a NeonApp
-/// or a widget subtree within the app.
-@internal
-@immutable
-class NeonTheme extends ThemeExtension<NeonTheme> {
-  /// Create a [NeonTheme] that's used to configure a [Theme].
-  const NeonTheme({
-    this.dialogTheme = const NeonDialogTheme(),
-  });
-
-  /// A theme for customizing the visual properties of [NeonDialog]s.
-  ///
-  /// This is the value returned from [NeonDialogTheme.of].
-  final NeonDialogTheme dialogTheme;
-
-  @override
-  NeonTheme copyWith({
-    final NeonDialogTheme? dialogTheme,
-  }) =>
-      NeonTheme(
-        dialogTheme: dialogTheme ?? this.dialogTheme,
-      );
-
-  @override
-  NeonTheme lerp(final NeonTheme? other, final double t) {
-    if (other is! NeonTheme) {
-      return this;
-    }
-    return NeonTheme(
-      dialogTheme: NeonDialogTheme.lerp(dialogTheme, other.dialogTheme, t),
-    );
-  }
-}
-
-/// Defines a theme for [NeonDialog] widgets.
-///
-/// Descendant widgets obtain the current [NeonDialogTheme] object using
-/// `NeonDialogTheme.of(context)`. Instances of [NeonDialogTheme] can be customized with
-/// [NeonDialogTheme.copyWith].
-@immutable
-class NeonDialogTheme {
-  /// Creates a dialog theme that can be used for [NeonTheme.dialogTheme].
-  const NeonDialogTheme({
-    this.constraints = const BoxConstraints(
-      minWidth: 280,
-      maxWidth: 560,
-    ),
-  });
-
-  /// Used to configure the [BoxConstraints] for the [NeonDialog] widget.
-  ///
-  /// This value should also be used on [Dialog.fullscreen] and other similar pages.
-  /// By default it follows the default [m3 dialog specification](https://m3.material.io/components/dialogs/specs).
-  final BoxConstraints constraints;
-
-  /// Creates a copy of this object but with the given fields replaced with the
-  /// new values.
-  NeonDialogTheme copyWith({
-    final BoxConstraints? constraints,
-  }) =>
-      NeonDialogTheme(
-        constraints: constraints ?? this.constraints,
-      );
-
-  /// The data from the closest [NeonDialogTheme] instance given the build context.
-  static NeonDialogTheme of(final BuildContext context) => Theme.of(context).extension<NeonTheme>()!.dialogTheme;
-
-  /// Linearly interpolate between two neon dialog themes.
-  ///
-  /// {@macro dart.ui.shadow.lerp}
-  // ignore: prefer_constructors_over_static_methods
-  static NeonDialogTheme lerp(final NeonDialogTheme a, final NeonDialogTheme b, final double t) {
-    if (identical(a, b)) {
-      return a;
-    }
-    return NeonDialogTheme(
-      constraints: BoxConstraints.lerp(a.constraints, b.constraints, t)!,
-    );
-  }
-
-  @override
-  int get hashCode => constraints.hashCode;
-
-  @override
-  bool operator ==(final Object other) {
-    if (identical(this, other)) {
-      return true;
-    }
-    if (other.runtimeType != runtimeType) {
-      return false;
-    }
-    return other is NeonDialogTheme && other.constraints == constraints;
-  }
-}

packages/neon/neon/lib/theme.dart

@@ -0,0 +1,4 @@
+export 'src/theme/branding.dart';
+export 'src/theme/color_scheme.dart';
+export 'src/theme/dialog.dart';
+export 'src/theme/neon.dart';