diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8cd05463..3d6ea09d 100755
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -12,9 +12,9 @@
     <application
         android:name=".application.AppClass"
         android:allowBackup="false"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@mipmap/ic_launcher_12"
         android:label="@string/quiz_app"
-        android:roundIcon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         tools:replace="android:allowBackup">
diff --git a/app/src/main/ic_launcher-web.png b/app/src/main/ic_launcher-web.png
index 9bba8589..3a4634db 100644
Binary files a/app/src/main/ic_launcher-web.png and b/app/src/main/ic_launcher-web.png differ
diff --git a/app/src/main/java/com/developervishalsehgal/udacityscholarsapp/ui/home/HomeActivity.java b/app/src/main/java/com/developervishalsehgal/udacityscholarsapp/ui/home/HomeActivity.java
index ec741f99..ada7345b 100644
--- a/app/src/main/java/com/developervishalsehgal/udacityscholarsapp/ui/home/HomeActivity.java
+++ b/app/src/main/java/com/developervishalsehgal/udacityscholarsapp/ui/home/HomeActivity.java
@@ -41,13 +41,13 @@
 import com.bumptech.glide.Glide;
 import com.developervishalsehgal.udacityscholarsapp.R;
 import com.developervishalsehgal.udacityscholarsapp.data.models.Quiz;
-import com.developervishalsehgal.udacityscholarsapp.ui.settings.SettingsActivity;
 import com.developervishalsehgal.udacityscholarsapp.ui.PresenterInjector;
 import com.developervishalsehgal.udacityscholarsapp.ui.discussion.QuizDiscussionActivity;
 import com.developervishalsehgal.udacityscholarsapp.ui.discussion.QuizDiscussionContract;
 import com.developervishalsehgal.udacityscholarsapp.ui.notification.NotificationActivity;
 import com.developervishalsehgal.udacityscholarsapp.ui.quizdetails.QuizDetailsActivity;
 import com.developervishalsehgal.udacityscholarsapp.ui.quizdetails.QuizDetailsContract;
+import com.developervishalsehgal.udacityscholarsapp.ui.settings.SettingsActivity;
 import com.developervishalsehgal.udacityscholarsapp.utils.AppConstants;
 import com.developervishalsehgal.udacityscholarsapp.utils.Connectivity;
 
@@ -128,7 +128,7 @@ private void initializeUI() {
         ActionBar actionBar = getSupportActionBar();
         if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
-            actionBar.setHomeAsUpIndicator(getDrawable(R.mipmap.ic_launcher));
+            actionBar.setHomeAsUpIndicator(getDrawable(R.drawable.ic_menu_white_24dp));
         }
 
         mQuizRecyclerView = findViewById(R.id.recyclerview_quizzes);
diff --git a/app/src/main/res/layout/activity_sign_in.xml b/app/src/main/res/layout/activity_sign_in.xml
index 01ebcf1a..7486d126 100644
--- a/app/src/main/res/layout/activity_sign_in.xml
+++ b/app/src/main/res/layout/activity_sign_in.xml
@@ -18,12 +18,12 @@
 
     <ImageView
         android:id="@+id/sigin_image_logo"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+        android:layout_width="@dimen/box_x_large"
+        android:layout_height="@dimen/box_x_large"
         android:layout_centerHorizontal="true"
-        android:layout_marginTop="@dimen/box_regular"
+        android:layout_marginTop="@dimen/margin_xx_large"
         android:contentDescription="@string/app_name"
-        android:src="@mipmap/signin_logo" />
+        android:src="@drawable/signin_pic" />
 
     <TextView
         android:id="@+id/signin_text_almost_there"
diff --git a/app/src/main/res/layout/activity_splash_screen.xml b/app/src/main/res/layout/activity_splash_screen.xml
index f34cf40a..69e6481c 100755
--- a/app/src/main/res/layout/activity_splash_screen.xml
+++ b/app/src/main/res/layout/activity_splash_screen.xml
@@ -16,7 +16,7 @@
         android:layout_centerHorizontal="true"
         android:adjustViewBounds="true"
         android:contentDescription="@string/app_name"
-        android:src="@mipmap/ic_launcher" />
+        android:src="@drawable/ic_launcher" />
 
     <TextView
         android:id="@+id/app_title"
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_12.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_12.xml
index c4a603d4..036d09bc 100755
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_12.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_12.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background"/>
+    <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
index c4a603d4..036d09bc 100755
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background"/>
+    <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
old mode 100755
new mode 100644
index 8e2fe684..a5e35a9d
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher.png and b/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png
index 42f47dbc..1756e6d0 100644
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png and b/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
index 1ce041ff..b301c31b 100755
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png and b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
old mode 100755
new mode 100644
index f1f98260..14b60f7f
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher.png and b/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png
index 0dfc34cf..4e925fab 100644
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png and b/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
index 33d7feb7..da2028a6 100755
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png and b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
old mode 100755
new mode 100644
index f2e34a5f..80fde810
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png
index 2964c962..42ebdaa3 100644
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png and b/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
index d6110368..16e24972 100755
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png and b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
old mode 100755
new mode 100644
index 7fde1c7f..1723e204
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png
index 74402b4a..2bfa05d7 100644
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png and b/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
index 99b3d2c3..f38398ca 100755
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png and b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
old mode 100755
new mode 100644
index 6dfbf0b6..2b2e2a3e
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png
index c96b3871..835b535e 100644
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
index 858a03f3..e4e3dc14 100755
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index ab4c5530..71758ee4 100755
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -118,11 +118,13 @@
     <dimen name="text_small">14sp</dimen>
 
     <!--Box related-->
+    <dimen name="box_x_large">160dp</dimen>
     <dimen name="box_large">120dp</dimen>
     <dimen name="box_regular">80dp</dimen>
     <dimen name="box_medium">64dp</dimen>
 
     <!--Margin related-->
+    <dimen name="margin_xx_large">64dp</dimen>
     <dimen name="margin_x_large">32dp</dimen>
     <dimen name="margin_large">16dp</dimen>
     <dimen name="margin_regular">12dp</dimen>