dependencies: flutter_web_browser: "^0.17.3" 

import 'package:flutter_web_browser/flutter_web_browser.dart'; 

FlutterWebBrowser.openWebPage( url: "https://flutter.io/", customTabsOptions: const CustomTabsOptions( colorScheme: CustomTabsColorScheme.dark, toolbarColor: Colors.deepPurple, secondaryToolbarColor: Colors.green, navigationBarColor: Colors.amber, shareState: CustomTabsShareState.on, instantAppsEnabled: true, showTitle: true, urlBarHidingEnabled: true, ), safariVCOptions: const SafariViewControllerOptions( barCollapsingEnabled: true, preferredBarTintColor: Colors.green, preferredControlTintColor: Colors.amber, dismissButtonStyle: SafariViewControllerDismissButtonStyle.close, modalPresentationCapturesStatusBarAppearance: true, ), );