change app theme

lib/app.dart

 import 'package:farm_tpf/presentation/screens/home/view/home_page.dart';
 import 'package:farm_tpf/presentation/screens/login/view/login_page.dart';
 import 'package:farm_tpf/presentation/screens/splash/view/splash_page.dart';
+import 'package:farm_tpf/utils/const_color.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData(
+        backgroundColor: Colors.white,
+        brightness: Brightness.light,
+        primaryColor: COLOR_CONST.DEFAULT,
+        accentColor: COLOR_CONST.DEFAULT,
+        hoverColor: COLOR_CONST.GREEN,
+        fontFamily: 'Roboto',
+      ),
       navigatorKey: _navigatorKey,
       builder: (context, child) {
         return BlocListener<AuthenticationBloc, AuthenticationState>(

lib/presentation/screens/forgot_password/sc_forgot_password.dart

         ),
         child: Text(
           'Gửi'.toUpperCase(),
+          style:
+              TextStyle(fontWeight: FontWeight.bold, color: COLOR_CONST.WHITE),
         ),
       ),
     );

lib/presentation/screens/login/view/login_form.dart

             ),
             child: Text(
               'Đăng nhập'.toUpperCase(),
+              style: TextStyle(
+                  fontWeight: FontWeight.bold, color: COLOR_CONST.WHITE),
             ),
           ),
         );

lib/presentation/screens/login/view/widget_top_welcome.dart

+import 'package:farm_tpf/utils/const_color.dart';
 import 'package:flutter/material.dart';
 
 class WidgetTopWelcome extends StatelessWidget {
           width: 172,
           child: FlutterLogo(
             size: 170,
+            colors: Colors.green,
           ),
         ),
         SizedBox(