SfTheme not applying dark theme to SfPdfViewer about flutter-widgets HOT 1 OPEN

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_pdfviewer/pdfviewer.dart';
import 'package:syncfusion_flutter_core/theme.dart';

void main() {
  runApp(const MyApp());
}

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(
            seedColor: Colors.deepPurple, brightness: Brightness.dark),
        useMaterial3: true,
      ),
      home: const MyHomePage(),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SfTheme(
        data: SfThemeData(
          brightness: Brightness.dark,
        ),
        child: SfPdfViewer.network(
            "https://www.lysator.liu.se/mit-guide/MITLockGuide.pdf"),
      ),
    );
  }
}