diff --git a/lib/Global/constant.dart b/lib/Global/constant.dart
index 5c77490..f2ab643 100644
--- a/lib/Global/constant.dart
+++ b/lib/Global/constant.dart
@@ -1,12 +1,5 @@
 // ignore_for_file: prefer_const_constructors
 
-import 'package:flappy_bird/Layouts/Pages/page_settings.dart';
-import 'package:flappy_bird/Layouts/Widgets/widget_gradient _button.dart';
-import 'package:flappy_bird/Layouts/Widgets/widget_bird.dart';
-import 'package:flappy_bird/Layouts/Pages/page_game.dart';
-import 'package:flappy_bird/Layouts/Widgets/widget_barrier.dart';
-import 'package:flutter/material.dart';
-
 /// SCORE Variables calculated in function [startGame] in [GamePage]
 int score = 0;
 int topScore = 0;
@@ -37,16 +30,3 @@ double barrierMovement = 0.05;
 /// Screen Boundary
 double screenEnd = -1.9;
 double screenStart = 3.5;
-
-///[Settings] Variables
-bool theme = true;
-Color c = Colors.yellow;
-
-
-/// to decide which page that class [Button] will navigate
-enum Navigation{ home, settings, rateUs }
-
-//
-String im = "0";
-
-String bird = "assets/pics/bird.png";
diff --git a/lib/Global/functions.dart b/lib/Global/functions.dart
index a1dff81..1b739b8 100644
--- a/lib/Global/functions.dart
+++ b/lib/Global/functions.dart
@@ -1,8 +1,6 @@
 // ignore_for_file: prefer_const_constructors
-
 import 'package:flappy_bird/Resources/strings.dart';
 import 'package:flutter/material.dart';
-
 import '../Database/database.dart';
 import 'constant.dart';
 
@@ -46,28 +44,28 @@ AlertDialog dialog(BuildContext context){
     shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(18)),
     actionsPadding: EdgeInsets.only(right: 8, bottom: 8),
     title: myText("About Flappy Bird",Colors.black, 22),
-    content: Text(Res.about, style: TextStyle(fontFamily: "Magic4"),),
+    content: Text(Str.about, style: TextStyle(fontFamily: "Magic4"),),
     actions: [
       gameButton(() {Navigator.pop(context);}, "Okay", Colors.deepOrange),
     ],
   );
 }
 
-void initial() {
+void init() {
   if(read("score") != null){
     topScore = read("score");
   }else{
     write("score", topScore);
   }
   if(read("background") != null){
-    im = read("background");
+    Str.image = read("background");
   }else{
-    write("background", im);
+    write("background", Str.image);
   }
   if(read("bird") != null){
-    bird = read("bird");
+    Str.bird = read("bird");
   }else{
-    write("bird", bird);
+    write("bird", Str.bird);
   }
   if(read("level") != null){
     barrierMovement = read("level");
@@ -78,14 +76,14 @@ void initial() {
 
 void navigate(context,navigate){
   switch(navigate){
-    case Res.gamePage:
-      Navigator.pushNamed(context, Res.gamePage);
+    case Str.gamePage:
+      Navigator.pushNamed(context, Str.gamePage);
       break;
-    case Res.settings:
-      Navigator.pushNamed(context, Res.settings);
+    case Str.settings:
+      Navigator.pushNamed(context, Str.settings);
       break;
-    case Res.rateUs:
-      Navigator.pushNamed(context, Res.rateUs);
+    case Str.rateUs:
+      Navigator.pushNamed(context, Str.rateUs);
       break;
   }
 }
\ No newline at end of file
diff --git a/lib/Layouts/Pages/page_game.dart b/lib/Layouts/Pages/page_game.dart
index 4618aac..78c9fc6 100644
--- a/lib/Layouts/Pages/page_game.dart
+++ b/lib/Layouts/Pages/page_game.dart
@@ -1,16 +1,15 @@
 // ignore_for_file: prefer_const_constructors, prefer_const_constructors_in_immutables, avoid_unnecessary_containers, avoid_print
-
 import 'dart:async';
 import 'package:flappy_bird/Layouts/Pages/page_start_screen.dart';
 import 'package:flappy_bird/Layouts/Widgets/widget_bird.dart';
 import 'package:flappy_bird/Layouts/Widgets/widget_barrier.dart';
 import 'package:flappy_bird/Layouts/Widgets/widget_cover.dart';
 import 'package:flutter/material.dart';
-import 'package:hive/hive.dart';
 import 'package:lottie/lottie.dart';
 import '../../Database/database.dart';
 import '../../Global/constant.dart';
 import '../../Global/functions.dart';
+import '../../Resources/strings.dart';
 
 class GamePage extends StatefulWidget {
   GamePage({Key? key}) : super(key: key);
@@ -28,7 +27,7 @@ class _GamePageState extends State<GamePage> {
           Expanded(
             flex: 3,
             child: Container(
-              decoration: background(im),
+              decoration: background(Str.image),
               child: Stack(
                 children: [
                   Bird(yAxis, birdWidth, birdHeight),
@@ -80,7 +79,6 @@ class _GamePageState extends State<GamePage> {
       height = gravity * time * time + velocity * time;
       setState(() {
         yAxis = initialHeight - height;
-
       });
       /* <  Barriers Movements  > */
       setState(() {
diff --git a/lib/Layouts/Pages/page_rate_us.dart b/lib/Layouts/Pages/page_rate_us.dart
index 69c06e3..1ef798c 100644
--- a/lib/Layouts/Pages/page_rate_us.dart
+++ b/lib/Layouts/Pages/page_rate_us.dart
@@ -3,8 +3,8 @@
 import 'package:flutter/material.dart';
 import 'package:rating_dialog/rating_dialog.dart';
 import 'package:share_plus/share_plus.dart';
-import '../../Global/constant.dart';
 import '../../Global/functions.dart';
+import '../../Resources/strings.dart';
 
 class RateUs extends StatelessWidget {
   RateUs({Key? key}) : super(key: key);
@@ -16,7 +16,7 @@ class RateUs extends StatelessWidget {
         body: Container(
             width: size.width,
             height: size.height,
-            decoration: background(im),
+            decoration: background(Str.image),
             child: Column(
               mainAxisAlignment: MainAxisAlignment.spaceEvenly,
               children: [
diff --git a/lib/Layouts/Pages/page_settings.dart b/lib/Layouts/Pages/page_settings.dart
index e17180c..d5eb93d 100644
--- a/lib/Layouts/Pages/page_settings.dart
+++ b/lib/Layouts/Pages/page_settings.dart
@@ -5,11 +5,8 @@ import 'package:flappy_bird/Layouts/Widgets/widget_bird_settings.dart';
 import 'package:flappy_bird/Layouts/Widgets/widget_difficulty_settings.dart';
 import 'package:flappy_bird/Layouts/Widgets/widget_music_settings.dart';
 import 'package:flappy_bird/Layouts/Widgets/widget_themes_settings.dart';
+import 'package:flappy_bird/Resources/strings.dart';
 import 'package:flutter/material.dart';
-import 'package:hive/hive.dart';
-
-import '../../Database/database.dart';
-import '../../Global/constant.dart';
 import '../../Global/functions.dart';
 
 class Settings extends StatefulWidget {
@@ -27,7 +24,7 @@ class _SettingsState extends State<Settings> {
       body: Container(
         width: size.width,
         height: size.height,
-        decoration: background(im),
+        decoration: background(Str.image),
         child: Column(
           children: [
             Container(
diff --git a/lib/Layouts/Pages/page_start_screen.dart b/lib/Layouts/Pages/page_start_screen.dart
index ebe2d60..40b5be7 100644
--- a/lib/Layouts/Pages/page_start_screen.dart
+++ b/lib/Layouts/Pages/page_start_screen.dart
@@ -19,7 +19,7 @@ class _StartScreenState extends State<StartScreen> {
   @override
   void initState() {
     // Todo : initialize the database  <---
-    initial();
+    init();
     super.initState();
   }
 
@@ -32,13 +32,13 @@ class _StartScreenState extends State<StartScreen> {
       body: Container(
         width: size.width,
         height: size.height,
-        decoration: background(im),
+        decoration: background(Str.image),
         child: Column(
           children: [
             // Flappy bird text
             Container(
               margin: EdgeInsets.only(top: size.height * 0.25),
-                child: Text("FlappyBird", style: TextStyle(fontSize: 70,fontFamily: "Magic4",color: Colors.white,),)),
+                child: myText("FlappyBird", Colors.white,70)),
             Bird(yAxis, birdWidth, birdHeight),
             _buttons(),
             AboutUs(size: size,)
@@ -53,12 +53,12 @@ class _StartScreenState extends State<StartScreen> {
 Column _buttons(){
   return Column(
     children: [
-      Button(buttonType: "text",height: 60,width: 278,icon: Icon(Icons.play_arrow_rounded,size: 60,color: Colors.green,),page: Res.gamePage,),
+      Button(buttonType: "text",height: 60,width: 278,icon: Icon(Icons.play_arrow_rounded,size: 60,color: Colors.green,),page: Str.gamePage,),
       Row(
         mainAxisAlignment: MainAxisAlignment.spaceEvenly,
         children: [
-          Button(buttonType: "icon",height: 60,width: 110,icon: Icon(Icons.settings,size: 40,color: Colors.grey.shade900,),page: Res.settings,),
-          Button(buttonType: "icon",height: 60,width: 110,icon: Icon(Icons.star,size: 40,color: Colors.deepOrange,),page: Res.rateUs,),
+          Button(buttonType: "icon",height: 60,width: 110,icon: Icon(Icons.settings,size: 40,color: Colors.grey.shade900,),page: Str.settings,),
+          Button(buttonType: "icon",height: 60,width: 110,icon: Icon(Icons.star,size: 40,color: Colors.deepOrange,),page: Str.rateUs,),
         ],
       ),
     ],
@@ -77,7 +77,7 @@ class AboutUs extends StatelessWidget {
         showDialog(context: context, builder: (context) {
           return dialog(context);
         },);
-      },child: Text("About Us",style: TextStyle(fontSize: 20,fontFamily: "Magic4",color: Colors.white),)),
+      },child: myText("About Us",Colors.white,20)),
     );
   }
 }
diff --git a/lib/Layouts/Widgets/widget_bird.dart b/lib/Layouts/Widgets/widget_bird.dart
index 83a813e..3d45d3b 100644
--- a/lib/Layouts/Widgets/widget_bird.dart
+++ b/lib/Layouts/Widgets/widget_bird.dart
@@ -1,9 +1,7 @@
 // ignore_for_file: sized_box_for_whitespace, prefer_const_constructors, prefer_const_constructors_in_immutables, use_key_in_widget_constructors
-
+import 'package:flappy_bird/Resources/strings.dart';
 import 'package:flutter/material.dart';
 
-import '../../Global/constant.dart';
-
 class Bird extends StatelessWidget {
   final double yAxis;
   final double birdWidth;
@@ -16,7 +14,7 @@ class Bird extends StatelessWidget {
     return AnimatedContainer(
       alignment: Alignment(0, (2 * yAxis + birdHeight) / (2- birdHeight)),
       duration: Duration(milliseconds: 0),
-      child: Image.asset(bird,
+      child: Image.asset(Str.bird,
         width: size.width * birdWidth,
         height: size.height * birdHeight,
         fit: BoxFit.cover,
diff --git a/lib/Layouts/Widgets/widget_bird_settings.dart b/lib/Layouts/Widgets/widget_bird_settings.dart
index dadaced..3e299e4 100644
--- a/lib/Layouts/Widgets/widget_bird_settings.dart
+++ b/lib/Layouts/Widgets/widget_bird_settings.dart
@@ -1,6 +1,7 @@
 // ignore_for_file: prefer_const_constructors
 
 import 'package:flappy_bird/Database/database.dart';
+import 'package:flappy_bird/Resources/strings.dart';
 import 'package:flutter/material.dart';
 
 import '../../Global/constant.dart';
@@ -21,8 +22,8 @@ class BirdSettings extends StatelessWidget {
           children: [
             GestureDetector(
               onTap: () {
-                bird = "assets/pics/bird.png";
-                write("bird", bird);
+                Str.bird = "assets/pics/bird.png";
+                write("bird", Str.bird);
               },
               child: SizedBox(
                 width: 75,
@@ -35,8 +36,8 @@ class BirdSettings extends StatelessWidget {
             ),
             GestureDetector(
               onTap: () {
-                bird = "assets/pics/blue.png";
-                write("bird", bird);
+                Str.bird = "assets/pics/blue.png";
+                write("bird", Str.bird);
               },
               child: SizedBox(
                 width: 75,
@@ -49,8 +50,8 @@ class BirdSettings extends StatelessWidget {
             ),
             GestureDetector(
               onTap: () {
-                bird = "assets/pics/green.png";
-                write("bird", bird);
+                Str.bird = "assets/pics/green.png";
+                write("bird", Str.bird);
               },
               child: SizedBox(
                 width: 75,
diff --git a/lib/Layouts/Widgets/widget_themes_settings.dart b/lib/Layouts/Widgets/widget_themes_settings.dart
index ed07a56..a601cba 100644
--- a/lib/Layouts/Widgets/widget_themes_settings.dart
+++ b/lib/Layouts/Widgets/widget_themes_settings.dart
@@ -1,14 +1,12 @@
 // ignore_for_file: prefer_const_constructors
-
 import 'package:flappy_bird/Database/database.dart';
+import 'package:flappy_bird/Resources/strings.dart';
 import 'package:flutter/material.dart';
-import '../../Global/constant.dart';
 import '../../Global/functions.dart';
 
 
 class ThemesSettings extends StatefulWidget {
   const ThemesSettings({Key? key}) : super(key: key);
-
   @override
   State<ThemesSettings> createState() => _ThemesSettingsState();
 }
@@ -27,23 +25,23 @@ class _ThemesSettingsState extends State<ThemesSettings> {
             children: [
               GestureDetector(onTap: (){
                 setState(() {
-                  im = "0";
-                  write("background", im);
-                  background(im);
+                  Str.image = "0";
+                  write("background", Str.image);
+                  background(Str.image);
                 });
               },child: Image.asset("assets/pics/0.png",width: 73,height: 70,)),
               GestureDetector(onTap: (){
                 setState(() {
-                  im = "1";
-                  write("background", im);
-                  background(im);
+                  Str.image = "1";
+                  write("background", Str.image);
+                  background(Str.image);
                 });
               },child: Image.asset("assets/pics/1.png",width: 73,height: 70,)),
               GestureDetector(onTap: (){
                 setState(() {
-                  im = "2";
-                  write("background", im);
-                  background(im);
+                  Str.image = "2";
+                  write("background", Str.image);
+                  background(Str.image);
                 });
               },child: Image.asset("assets/pics/2.png",width: 63,height: 66,)),
             ],
@@ -52,4 +50,4 @@ class _ThemesSettingsState extends State<ThemesSettings> {
       ),
     );
   }
-}
+}
\ No newline at end of file
diff --git a/lib/Resources/strings.dart b/lib/Resources/strings.dart
index bf6f2d5..c47c577 100644
--- a/lib/Resources/strings.dart
+++ b/lib/Resources/strings.dart
@@ -1,9 +1,12 @@
-class Res{
-  static const home = "/";
-  static const gamePage = "game";
-  static const rateUs = "rate";
-  static const settings = "settings";
-  static const about = "The game is a side-scroller where the player"
+class Str{
+  static const String home = "/";
+  static const String gamePage = "game";
+  static const String rateUs = "rate";
+  static const String settings = "settings";
+  static const String about = "The game is a side-scroller where the player"
       " controls a bird, attempting to fly between "
       " columns of green pipes without hitting them";
+
+  static String image = "";
+  static String bird = "assets/pics/bird.png";
 }
\ No newline at end of file
diff --git a/lib/Routes/app_routes.dart b/lib/Routes/app_routes.dart
index 2cd3c2b..38c611c 100644
--- a/lib/Routes/app_routes.dart
+++ b/lib/Routes/app_routes.dart
@@ -9,13 +9,13 @@ import '../Resources/strings.dart';
 class AppRoute{
   Route? generateRoute(RouteSettings settings){
     switch(settings.name){
-      case Res.home:
+      case Str.home:
         return MaterialPageRoute(builder: (_) => StartScreen());
-      case Res.gamePage:
+      case Str.gamePage:
         return MaterialPageRoute(builder: (_) => GamePage());
-      case Res.rateUs:
+      case Str.rateUs:
         return MaterialPageRoute(builder: (_) => RateUs());
-      case Res.settings:
+      case Str.settings:
         return MaterialPageRoute(builder: (_) => Settings());
       default:
         _errorRoute();
diff --git a/lib/main.dart b/lib/main.dart
index f98caee..f1ea48e 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -25,7 +25,7 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       home: StartScreen(),
       debugShowCheckedModeBanner: false,
-      initialRoute: Res.home,
+      initialRoute: Str.home,
       onGenerateRoute: AppRoute().generateRoute,
     );
   }