diff --git a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java
index 08b1078..4350307 100644
--- a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java
+++ b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java
@@ -197,11 +197,7 @@ public class MainActivity extends BaseActivity implements NavigationView.OnNavig
         } else {
             difficultyBar.setRating(GameDifficulty.getValidDifficultyList().indexOf(lastChosenDifficulty) + 1);
         }
-        /*LayerDrawable stars = (LayerDrawable)difficultyBar.getProgressDrawable();
-        stars.getDrawable(2).setColorFilter(getResources().getColor(R.color.colorPrimary), PorterDuff.Mode.SRC_ATOP);//Color for Stars fully selected
-        stars.getDrawable(1).setColorFilter(getResources().getColor(R.color.middleblue), PorterDuff.Mode.SRC_ATOP);//Color for Stars partially selected
-        stars.getDrawable(0).setColorFilter(getResources().getColor(R.color.lightblue), PorterDuff.Mode.SRC_ATOP);//color for stars not selected
-        */
+
         // on first create always check for loadable levels!
         SharedPreferences.Editor editor = settings.edit();
         editor.putBoolean("savesChanged", true);
diff --git a/app/src/main/res/drawable-v21/ratingbar.xml b/app/src/main/res/drawable-v21/ratingbar.xml
index fe14f96..9429b0d 100644
--- a/app/src/main/res/drawable-v21/ratingbar.xml
+++ b/app/src/main/res/drawable-v21/ratingbar.xml
@@ -1,34 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2011 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:id="@android:id/background">
         <bitmap
             android:src="@drawable/ic_star_black_48dp"
-            android:tint="?attr/rankingStarNotSelected" />
-    </item>
-    <item android:id="@android:id/secondaryProgress">
-        <bitmap
-            android:src="@drawable/ic_star_half_black_48dp"
-            android:tint="?attr/rankingStarNotSelected" />
+            android:tint="@color/middlegrey" />
     </item>
     <item android:id="@android:id/progress">
         <bitmap
             android:src="@drawable/ic_star_black_48dp"
-            android:tint="?attr/colorAccent" />
+            android:tint="@color/colorAccent" />
     </item>
 </layer-list>
 
diff --git a/app/src/main/res/drawable-xhdpi/ic_star_accent_48dp.png b/app/src/main/res/drawable-xhdpi/ic_star_accent_48dp.png
deleted file mode 100644
index d8bbfa1..0000000
Binary files a/app/src/main/res/drawable-xhdpi/ic_star_accent_48dp.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_circle_blue_36dp.xml b/app/src/main/res/drawable/ic_circle_blue_36dp.xml
index 5cfcc8e..735ffcd 100644
--- a/app/src/main/res/drawable/ic_circle_blue_36dp.xml
+++ b/app/src/main/res/drawable/ic_circle_blue_36dp.xml
@@ -1,6 +1,6 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="37dp"
-    android:height="37dp"
+    android:width="38dp"
+    android:height="38dp"
     android:viewportWidth="24.0"
     android:viewportHeight="24.0">
     <path
diff --git a/app/src/main/res/drawable/ic_circle_grey_36dp.xml b/app/src/main/res/drawable/ic_circle_grey_36dp.xml
index b2962e0..61bed8f 100644
--- a/app/src/main/res/drawable/ic_circle_grey_36dp.xml
+++ b/app/src/main/res/drawable/ic_circle_grey_36dp.xml
@@ -1,6 +1,6 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="37dp"
-    android:height="37dp"
+    android:width="38dp"
+    android:height="38dp"
     android:viewportWidth="24.0"
     android:viewportHeight="24.0">
     <path
diff --git a/app/src/main/res/drawable/ic_star_black_48dp.png b/app/src/main/res/drawable/ic_star_black_48dp.png
new file mode 100644
index 0000000..54d3065
Binary files /dev/null and b/app/src/main/res/drawable/ic_star_black_48dp.png differ
diff --git a/app/src/main/res/drawable/ic_star_black_48dp.xml b/app/src/main/res/drawable/ic_star_black_48dp.xml
deleted file mode 100644
index 810c836..0000000
--- a/app/src/main/res/drawable/ic_star_black_48dp.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="72dp"
-    android:height="72dp"
-    android:viewportWidth="72"
-    android:viewportHeight="72">
-    <path
-        android:fillColor="?attr/standardVectorGraphic"
-        android:name="Color Fill 1"
-        android:pathData="m36 8 8 18 21 2 -16 14 5 20 -18 -10 -18 10 5 -20 -16 -14 21 -2 8 -18z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_star_blue_36dp.png b/app/src/main/res/drawable/ic_star_blue_36dp.png
new file mode 100644
index 0000000..0386ef9
Binary files /dev/null and b/app/src/main/res/drawable/ic_star_blue_36dp.png differ
diff --git a/app/src/main/res/drawable/ic_star_blue_36dp.xml b/app/src/main/res/drawable/ic_star_blue_36dp.xml
deleted file mode 100644
index 7ae4899..0000000
--- a/app/src/main/res/drawable/ic_star_blue_36dp.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="54dp"
-    android:height="54dp"
-    android:viewportWidth="54"
-    android:viewportHeight="54">
-    <path
-        android:fillColor="?attr/rankingStarSelected"
-        android:name="Color Fill 1"
-        android:pathData="m27 39 13 7 -3 -15 11 -10 -15 -1 -6 -13 -6 13 -15 1 11 10 -3 15 13 -7z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_star_grey_36dp.png b/app/src/main/res/drawable/ic_star_grey_36dp.png
new file mode 100644
index 0000000..4e4e358
Binary files /dev/null and b/app/src/main/res/drawable/ic_star_grey_36dp.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ic_star_grey_48dp.png b/app/src/main/res/drawable/ic_star_grey_48dp.png
similarity index 100%
rename from app/src/main/res/drawable-xhdpi/ic_star_grey_48dp.png
rename to app/src/main/res/drawable/ic_star_grey_48dp.png
diff --git a/app/src/main/res/drawable/ic_star_half_black_48dp.xml b/app/src/main/res/drawable/ic_star_half_black_48dp.xml
deleted file mode 100644
index 1a29044..0000000
--- a/app/src/main/res/drawable/ic_star_half_black_48dp.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="72dp"
-    android:height="72dp"
-    android:viewportWidth="72"
-    android:viewportHeight="72">
-    <path
-        android:fillColor="?attr/standardVectorGraphic"
-        android:name="Color Fill 1"
-        android:pathData="m36 53v-43l-8 18l-21 1l16 15l-5 20l18 -11z" />
-</vector>
diff --git a/app/src/main/res/drawable/ratingbar.xml b/app/src/main/res/drawable/ratingbar.xml
index a461706..35805cf 100644
--- a/app/src/main/res/drawable/ratingbar.xml
+++ b/app/src/main/res/drawable/ratingbar.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item
-        android:id="@android:id/background"
-        android:drawable="@drawable/ic_star_grey_48dp" />
-    <item
-        android:id="@android:id/secondaryProgress"
-        android:drawable="@drawable/ic_star_half_black_48dp" />
-    <item
-        android:id="@android:id/progress"
-        android:drawable="@drawable/ic_star_accent_48dp" />
+    <item android:id="@android:id/background">
+        <bitmap
+            android:src="@drawable/ic_star_grey_36dp" />
+    </item>
+    <item android:id="@android:id/progress">
+        <bitmap
+            android:src="@drawable/ic_star_blue_36dp" />
+    </item>
 </layer-list>
\ No newline at end of file
diff --git a/app/src/main/res/layout-land/activity_main_menu.xml b/app/src/main/res/layout-land/activity_main_menu.xml
index 96f4df7..b82f328 100644
--- a/app/src/main/res/layout-land/activity_main_menu.xml
+++ b/app/src/main/res/layout-land/activity_main_menu.xml
@@ -29,7 +29,6 @@
 
         </androidx.appcompat.widget.Toolbar>
 
-
     </com.google.android.material.appbar.AppBarLayout>
 
         <LinearLayout
@@ -112,16 +111,18 @@
                         android:id="@+id/circleButton"
                         style="@style/CheckBox"
                         android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
+                        android:layout_height="0dp"
+                        android:layout_marginTop="1dp"
                         android:layout_marginEnd="4dp"
                         android:layout_marginRight="4dp"
+                        android:layout_marginBottom="1dp"
                         android:button="@drawable/create_game_src"
-                        app:layout_constraintBottom_toBottomOf="parent"
+                        app:layout_constraintBottom_toBottomOf="@+id/difficultyBar"
                         app:layout_constraintEnd_toStartOf="@+id/difficultyBar"
                         app:layout_constraintHorizontal_bias="1.0"
                         app:layout_constraintStart_toStartOf="parent"
-                        app:layout_constraintTop_toTopOf="parent"
-                        app:layout_constraintVertical_bias="0.65" />
+                        app:layout_constraintTop_toTopOf="@+id/difficultyBar"
+                        app:layout_constraintVertical_bias="0.5" />
 
                     <RatingBar
                         android:id="@+id/difficultyBar"
@@ -131,7 +132,7 @@
                         android:layout_marginStart="41dp"
                         android:layout_marginLeft="41dp"
                         android:clickable="true"
-                        android:numStars="3"
+                        android:numStars="4"
                         android:rating="1"
                         android:stepSize="1"
                         app:layout_constraintBottom_toBottomOf="parent"
diff --git a/app/src/main/res/layout-xlarge/activity_main_menu.xml b/app/src/main/res/layout-xlarge/activity_main_menu.xml
deleted file mode 100644
index d431777..0000000
--- a/app/src/main/res/layout-xlarge/activity_main_menu.xml
+++ /dev/null
@@ -1,266 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.drawerlayout.widget.DrawerLayout android:id="@+id/drawer_layout_main"
-    android:layout_height="match_parent"
-    android:layout_width="match_parent"
-    android:fitsSystemWindows="true"
-    tools:openDrawer="start"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
-
-<androidx.coordinatorlayout.widget.CoordinatorLayout
-    android:fitsSystemWindows="true"
-    tools:context="tu_darmstadt.sudoku.ui.MainActivity"
-    android:layout_height="match_parent"
-    android:layout_width="match_parent">
-
-    <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/appbar"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
-
-        <androidx.appcompat.widget.Toolbar
-             android:id="@+id/toolbar"
-             android:layout_width="match_parent"
-             android:layout_height="?attr/actionBarSize"
-             android:background="?attr/colorPrimary"
-             app:popupTheme="@style/AppTheme.PopupOverlay">
-
-        </androidx.appcompat.widget.Toolbar>
-
-
-    </com.google.android.material.appbar.AppBarLayout>
-
-   <LinearLayout
-        android:layout_height="match_parent"
-        android:layout_width="match_parent"
-        android:orientation="vertical"
-        android:weightSum="10"
-       android:id="@+id/main_content"
-        style="?android:buttonBarStyle"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-        <RelativeLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layoutDirection="ltr"
-            android:layout_weight="4">
-
-        <androidx.viewpager.widget.ViewPager
-            android:id="@+id/scroller"
-
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
-
-            <ImageView
-                android:id="@+id/arrow_left"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:srcCompat="@drawable/ic_keyboard_arrow_left_black_24dp"
-                android:layout_alignParentLeft="true"
-                android:layout_alignParentStart="true"
-                android:padding="@dimen/activity_horizontal_margin"
-                android:layout_marginStart="@dimen/activity_horizontal_margin"
-                android:layout_marginLeft="@dimen/activity_horizontal_margin"
-                android:layout_centerVertical="true"
-                android:onClick="onClick"/>
-            <ImageView
-                android:id="@+id/arrow_right"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:srcCompat="@drawable/ic_keyboard_arrow_right_black_24dp"
-                android:layout_alignParentRight="true"
-                android:layout_alignParentEnd="true"
-                android:padding="@dimen/activity_horizontal_margin"
-                android:layout_marginEnd="@dimen/activity_horizontal_margin"
-                android:layout_marginRight="@dimen/activity_horizontal_margin"
-                android:layout_centerVertical="true"
-                android:onClick="onClick"/>
-        </RelativeLayout>
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:layout_below="@id/scroller"
-            android:layout_weight="6"
-            android:paddingLeft="@dimen/activity_horizontal_margin"
-            android:paddingRight="@dimen/activity_horizontal_margin"
-            android:paddingTop="@dimen/activity_vertical_margin"
-            android:paddingBottom="@dimen/activity_vertical_margin"
-            tools:context="tu_darmstadt.sudoku.ui.MainActivity"
-            android:orientation="vertical"
-            android:weightSum="8"
-            android:divider="#000"
-            android:baselineAligned="false"
-            android:gravity="center_horizontal"
-            style="?android:buttonBarStyle">
-
-            <TextView
-                android:id="@+id/difficultyText"
-                android:layout_height="wrap_content"
-                android:layout_width="wrap_content"
-                android:text="@string/difficulty_easy"
-                android:textSize="@dimen/main_text_difficulty"/>
-
-            <androidx.constraintlayout.widget.ConstraintLayout
-                android:id="@+id/linearLayout2"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:gravity="center_vertical">
-
-                <androidx.appcompat.widget.AppCompatCheckBox
-                    android:id="@+id/circleButton"
-                    style="@style/CheckBox"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_marginEnd="4dp"
-                    android:layout_marginRight="4dp"
-                    android:button="@drawable/create_game_src"
-                    app:layout_constraintBottom_toBottomOf="@+id/difficultyBar"
-                    app:layout_constraintEnd_toStartOf="@+id/difficultyBar"
-                    app:layout_constraintHorizontal_bias="1.0"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toTopOf="@+id/difficultyBar"
-                    app:layout_constraintVertical_bias="0.65" />
-
-                <RatingBar
-                    android:id="@+id/difficultyBar"
-                    style="@style/RatingBar"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_marginStart="41dp"
-                    android:layout_marginLeft="41dp"
-                    android:clickable="true"
-                    android:numStars="3"
-                    android:padding="0dp"
-                    android:paddingTop="70dp"
-                    android:rating="1"
-                    android:stepSize="1"
-                    app:layout_constraintBottom_toBottomOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toTopOf="parent" />
-
-            </androidx.constraintlayout.widget.ConstraintLayout>
-            <Button
-                android:textColor="?attr/lightestFontColor"
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_marginTop="@dimen/activity_vertical_margin"
-                android:layout_marginLeft="@dimen/main_button_padding"
-                android:layout_marginRight="@dimen/main_button_padding"
-                android:text="@string/new_game"
-                android:textStyle="normal"
-                android:textSize="@dimen/text_size"
-                android:id="@+id/playButton"
-                android:layout_gravity="center_horizontal"
-                android:layout_weight="2"
-                android:onClick="onClick"
-                android:capitalize="none"
-                android:clickable="false"
-                android:elevation="10dp"
-                android:background="@drawable/button_standalone"/>
-
-            <Button
-                android:textColor="?attr/lightestFontColor"
-                android:layout_marginTop="20dp"
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_marginLeft="@dimen/main_button_padding"
-                android:layout_marginRight="@dimen/main_button_padding"
-                android:text="@string/menu_continue_game"
-                android:textStyle="normal"
-                android:textSize="@dimen/text_size"
-                android:id="@+id/continueButton"
-                android:layout_gravity="center_horizontal"
-                android:layout_weight="2"
-                android:onClick="onClick"
-                android:capitalize="none"
-                android:clickable="false"
-                android:background="@drawable/button_standalone"/>
-<!--
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="2"
-                android:weightSum="2">
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="30dp"
-                    android:layout_marginRight="1dp"
-                    android:text="@string/menu_highscore"
-                    android:textStyle="normal"
-                    android:id="@+id/highscoreButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="1dp"
-                    android:layout_marginRight="30dp"
-                    android:text="@string/menu_settings"
-                    android:textStyle="normal"
-                    android:id="@+id/settingsButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
-            </LinearLayout>
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="2"
-                android:weightSum="2">
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="30dp"
-                    android:layout_marginRight="1dp"
-                    android:text="@string/menu_about"
-                    android:textStyle="normal"
-                    android:id="@+id/aboutButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
-                <Button
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_marginLeft="1dp"
-                    android:layout_marginRight="30dp"
-                    android:text="@string/menu_help"
-                    android:textStyle="normal"
-                    android:id="@+id/helpButton"
-                    android:layout_gravity="center_horizontal"
-                    android:layout_weight="1"
-                    android:onClick="onClick"
-                    android:capitalize="none"
-                    android:clickable="false"/>
-            </LinearLayout>
--->
-        </LinearLayout>
-
-   </LinearLayout>
-
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
-
-    <com.google.android.material.navigation.NavigationView
-        android:id="@+id/nav_view_main"
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:layout_gravity="start"
-        android:fitsSystemWindows="true"
-        android:background="?attr/lightestBackGround"
-        app:itemTextColor="?attr/menuTextColor"
-        app:itemIconTint="?attr/menuTextColor"
-        app:menu="@menu/menu_drawer_main"
-        app:headerLayout="@layout/nav_header" />
-
-</androidx.drawerlayout.widget.DrawerLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main_menu.xml b/app/src/main/res/layout/activity_main_menu.xml
index e0efd48..c2d75c6 100644
--- a/app/src/main/res/layout/activity_main_menu.xml
+++ b/app/src/main/res/layout/activity_main_menu.xml
@@ -110,33 +110,38 @@
 
                     <androidx.appcompat.widget.AppCompatCheckBox
                         android:id="@+id/circleButton"
+                        style="@style/CheckBox"
                         android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:layout_marginEnd="4dp"
-                        android:layout_marginRight="4dp"
-                        android:layout_marginBottom="7dp"
+                        android:layout_height="0dp"
+                        android:layout_marginTop="1dp"
+                        android:layout_marginBottom="1dp"
                         android:button="@drawable/create_game_src"
                         app:layout_constraintBottom_toBottomOf="@+id/difficultyBar"
+                        app:layout_constraintDimensionRatio="h,1:1"
                         app:layout_constraintEnd_toStartOf="@+id/difficultyBar"
+                        app:layout_constraintHorizontal_bias="1.0"
                         app:layout_constraintStart_toStartOf="parent"
                         app:layout_constraintTop_toTopOf="@+id/difficultyBar"
-                        app:layout_constraintVertical_bias="0.65" />
+                        app:layout_constraintVertical_bias="0.5" />
 
                     <RatingBar
                         android:id="@+id/difficultyBar"
                         style="@style/RatingBar"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:layout_marginStart="41dp"
-                        android:layout_marginLeft="41dp"
+                        android:layout_marginStart="4dp"
+                        android:layout_marginLeft="4dp"
+                        android:layout_marginTop="1dp"
+                        android:layout_marginBottom="16dp"
                         android:clickable="true"
                         android:numStars="4"
                         android:rating="2"
                         android:stepSize="1"
                         app:layout_constraintBottom_toBottomOf="parent"
                         app:layout_constraintEnd_toEndOf="parent"
-                        app:layout_constraintStart_toStartOf="parent"
-                        app:layout_constraintTop_toTopOf="parent" />
+                        app:layout_constraintStart_toEndOf="@+id/circleButton"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintVertical_bias="0.5" />
                 </androidx.constraintlayout.widget.ConstraintLayout>
 
                 <Button
diff --git a/app/src/main/res/values-v21/styles.xml b/app/src/main/res/values-v21/styles.xml
index 62116a0..42a7542 100644
--- a/app/src/main/res/values-v21/styles.xml
+++ b/app/src/main/res/values-v21/styles.xml
@@ -7,7 +7,6 @@
         <item name="android:statusBarColor">@android:color/transparent</item>
     </style>
 
-
     <style name="RatingBar" parent="RatingBarStyle">
         <item name="android:minHeight">57dp</item>
         <item name="android:maxHeight">57dp</item>