merge material 3

lib/pages/user_search/user_serach.dart

@@ -2,6 +2,7 @@ import 'package:fcs/domain/entities/user.dart';
 import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/pages/package/model/package_model.dart';
 import 'package:fcs/pages/user_search/user_list_row.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
@@ -30,13 +31,15 @@ class UserSearchDelegate extends SearchDelegate<User> {
     final ThemeData theme = Theme.of(context);
     return theme.copyWith(
       appBarTheme: AppBarTheme(color: primaryColor),
+      iconButtonTheme: IconButtonThemeData(
+          style: ButtonStyle(
+              iconColor: MaterialStateProperty.all<Color>(Colors.white))),
       inputDecorationTheme: InputDecorationTheme(
           border: InputBorder.none,
-          hintStyle: TextStyle(
-              color: theme.primaryTextTheme.caption?.color, fontSize: 14)),
+          hintStyle: TextStyle(color: Colors.grey, fontSize: 14)),
       textTheme: TextTheme(
-          headline1: TextStyle(
-              color: theme.primaryTextTheme.headline1?.color,
+          displayLarge: TextStyle(
+              color: theme.primaryTextTheme.displayLarge?.color,
               fontSize: 16,
               backgroundColor: primaryColor)),
       primaryColor: primaryColor,
@@ -56,7 +59,7 @@ class UserSearchDelegate extends SearchDelegate<User> {
   @override
   Widget buildLeading(BuildContext context) {
     return IconButton(
-      icon: Icon(Icons.arrow_back),
+      icon: Icon(CupertinoIcons.back),
       onPressed: () => close(context, new User()),
     );
   }