Fail on iOS with fallbackColor set.

[kj415j45]

Env:

• Host
  • MacOS 12.6.2
  • Flutter 3.10.3 (Dart 3.0.3) stable channel
• Target
  • iPhone 14 (simulator)
  • iOS 16.2

Code:

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  SystemTheme.fallbackColor = const Color(0xFF1f1e33);
  await SystemTheme.accentColor.load();

  runApp(MyApp());
}

Error stack:

[VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: MissingPluginException(No implementation found for method SystemTheme.accentColor on channel system_theme)
#0      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:308:7)
<asynchronous suspension>
#1      SystemAccentColor.load (package:system_theme/system_theme.dart:88:20)
<asynchronous suspension>
[VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: MissingPluginException(No implementation found for method SystemTheme.accentColor on channel system_theme)
#0      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:308:7)
<asynchronous suspension>
#1      SystemAccentColor.load (package:system_theme/system_theme.dart:88:20)
<asynchronous suspension>
#2      main (package:playground/main.dart:8:3)
<asynchronous suspension>