Change information or Change login text with FlutterFire UI

I want to change the default information that FlutterFire generates or change the Text of the sale, how can I add or delete information?

Widget build(BuildContext context)=> StreamBuilder<User?>
(
stream: FirebaseAuth.instance.authStateChanges(),
builder: (context, snapshot){
      return
          SignInScreen(
            providerConfigs: [
              EmailProviderConfiguration(),
              GoogleProviderConfiguration(clientId: ''),
            ],
          );
},