diff --git a/.idea/compiler.xml b/.idea/compiler.xml
deleted file mode 100644
index 96cc43e..0000000
--- a/.idea/compiler.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CompilerConfiguration">
-    <resourceExtensions />
-    <wildcardResourcePatterns>
-      <entry name="!?*.java" />
-      <entry name="!?*.form" />
-      <entry name="!?*.class" />
-      <entry name="!?*.groovy" />
-      <entry name="!?*.scala" />
-      <entry name="!?*.flex" />
-      <entry name="!?*.kt" />
-      <entry name="!?*.clj" />
-      <entry name="!?*.aj" />
-    </wildcardResourcePatterns>
-    <annotationProcessing>
-      <profile default="true" name="Default" enabled="false">
-        <processorPath useClasspath="true" />
-      </profile>
-    </annotationProcessing>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/copyright/profiles_settings.xml b/.idea/copyright/profiles_settings.xml
deleted file mode 100644
index e7bedf3..0000000
--- a/.idea/copyright/profiles_settings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<component name="CopyrightManager">
-  <settings default="" />
-</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index ba7052b..99202cc 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -5,11 +5,12 @@
     <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
     <option name="myNullables">
       <value>
-        <list size="4">
+        <list size="5">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
+          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
+          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
         </list>
       </value>
     </option>
@@ -24,7 +25,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index 5713c91..2f4c1a1 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -29,10 +29,11 @@ dependencies {
     compile 'com.android.support:appcompat-v7:26.1.0'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'
     compile 'com.android.support:recyclerview-v7:26.1.0'
+    compile 'com.android.support:cardview-v7:26.1.0'
     compile 'com.google.android.gms:play-services-ads:10.2.6'
     testCompile 'junit:junit:4.12'
 
     // Room
     implementation "android.arch.persistence.room:runtime:1.0.0"
     annotationProcessor "android.arch.persistence.room:compiler:1.0.0"
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/bbot/maxflow/MainActivity.java b/app/src/main/java/com/bbot/maxflow/MainActivity.java
index bbee63b..58f33b2 100644
--- a/app/src/main/java/com/bbot/maxflow/MainActivity.java
+++ b/app/src/main/java/com/bbot/maxflow/MainActivity.java
@@ -5,6 +5,7 @@
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.v7.widget.CardView;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
diff --git a/app/src/main/java/com/bbot/maxflow/SolverPanel.java b/app/src/main/java/com/bbot/maxflow/SolverPanel.java
index ffbf130..dfe36f2 100644
--- a/app/src/main/java/com/bbot/maxflow/SolverPanel.java
+++ b/app/src/main/java/com/bbot/maxflow/SolverPanel.java
@@ -20,7 +20,7 @@ public SolverPanel(Context context, String serialized) {
         updateShowBtns();
         fit = false;
         HighlightAugPaths = true;
-        prevBmp = BitmapFactory.decodeResource(getResources(), R.drawable.keyboard_left_arrow_button);
+        prevBmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_keyboard_arrow_left_black_24dp);
         nextBmp = BitmapFactory.decodeResource(getResources(), R.drawable.keyboard_right_arrow_button);
         bmpW = prevBmp.getWidth();
         bmpH = prevBmp.getHeight();
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 8de9c52..f26ba98 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -3,40 +3,127 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".MainActivity"
+    android:orientation="vertical">
 
-    <!-- view for AdMob Banner Ad -->
-    <com.google.android.gms.ads.AdView
-        android:id="@+id/adView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_centerHorizontal="true"
-        ads:adSize="BANNER"
-        ads:adUnitId="@string/banner_ad_unit_id" />
+    <LinearLayout
+        android:clipToPadding="false"
+        android:gravity="center"
+        android:id="@+id/layout1"
+        android:orientation="horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <android.support.v7.widget.CardView
+            android:foreground="?android:attr/selectableItemBackground"
+            android:clickable="false"
+            android:id="@+id/line1"
 
-    <Button
-        android:id="@+id/editor_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_above="@+id/about_btn"
-        android:layout_centerHorizontal="true"
-        android:text="Create Graph" />
+            android:layout_width="160dp"
+            android:layout_height="185dp"
+            android:layout_margin="10dp">
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:gravity="center">
+            <ImageView
+                android:layout_width="64dp"
+                android:layout_height="64dp"
+                android:background="@drawable/circlebackgrounddeeppurple"
+                android:src="@drawable/ic_create_black_24dp"
+                android:padding="10dp"/>
+            <Button
+                android:layout_width="130dp"
+                android:layout_height="wrap_content"
+                android:textStyle="bold"
+                android:background="@drawable/btn"
+                android:layout_marginTop="10dp"
+                android:id="@+id/editor_btn"
+                android:text="Create Graph"/>
 
-    <Button
-        android:id="@+id/explorer_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_above="@+id/editor_btn"
-        android:layout_centerHorizontal="true"
-        android:text="Open Graph" />
+        </LinearLayout>
+        </android.support.v7.widget.CardView>
 
-    <Button
-        android:id="@+id/about_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_centerHorizontal="true"
-        android:layout_centerVertical="true"
-        android:text="About" />
+        <LinearLayout
+            android:clipToPadding="false"
+            android:gravity="center"
+            android:orientation="horizontal"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+            <android.support.v7.widget.CardView
+                android:foreground="?android:attr/selectableItemBackground"
+                android:clickable="false"
+                android:layout_width="160dp"
+                android:layout_height="185dp"
+                android:layout_margin="10dp">
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:orientation="vertical"
+                    android:gravity="center">
+                    <ImageView
+                        android:layout_width="64dp"
+                        android:layout_height="64dp"
+                        android:background="@drawable/circlebackgrounddeeppurple"
+                        android:src="@drawable/ic_folder_open_black_24dp"
+                        android:padding="10dp"/>
+                    <Button
+                        android:layout_width="130dp"
+                        android:layout_height="wrap_content"
+                        android:textStyle="bold"
+                        android:layout_marginTop="10dp"
+                        android:background="@drawable/btn"
+                        android:text="Open Graph"
+                        android:id="@+id/explorer_btn"/>
+                </LinearLayout>
+            </android.support.v7.widget.CardView>
+        </LinearLayout>
+    </LinearLayout>
+    <LinearLayout
+        android:clipToPadding="false"
+        android:gravity="center"
+        android:layout_below="@+id/layout1"
+        android:orientation="horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <android.support.v7.widget.CardView
+            android:foreground="?android:attr/selectableItemBackground"
+            android:clickable="false"
+            android:layout_width="160dp"
+            android:layout_height="185dp"
+            android:layout_margin="10dp">
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:orientation="vertical"
+                android:gravity="center">
+                <ImageView
+                    android:layout_width="64dp"
+                    android:layout_height="64dp"
+                    android:background="@drawable/circlebackgrounddeeppurple"
+                    android:src="@drawable/ic_class_black_24dp"
+                    android:padding="10dp"/>
+                <Button
+                    android:layout_width="130dp"
+                    android:layout_height="wrap_content"
+                    android:textStyle="bold"
+                    android:background="@drawable/btn"
+                    android:layout_marginTop="10dp"
+                    android:id="@+id/about_btn"
+                    android:text="About"/>
 
-</RelativeLayout>
+            </LinearLayout>
+        </android.support.v7.widget.CardView>
+
+    </LinearLayout>
+        <!-- view for AdMob Banner Ad -->
+        <com.google.android.gms.ads.AdView
+            android:id="@+id/adView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentBottom="true"
+            android:layout_centerHorizontal="true"
+            ads:adSize="BANNER"
+            ads:adUnitId="@string/banner_ad_unit_id" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 4fb96a4..fec4bea 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -2,6 +2,15 @@
 <resources>
     <color name="colorPrimary">#3F51B5</color>
     <color name="colorPrimaryDark">#303F9F</color>
-    <color name="colorAccent">#FF4081</color>
     <color name="bgcolor">#D0D0D0</color>
+    <color name="backgroundcolor">#fcfcfc</color>
+    <color name="lightgray">#ededed</color>
+    <color name="deeppurple">#7c4dff</color>
+    <color name="yello">#ffb300</color>
+    <color name="green">#00bfa5</color>
+    <color name="colorAccent">#FF4081</color>
+    <color name="darkblue">#23283a</color>
+    <color name="testcolorblue">#152b38</color>
+    <color name="pink">#fe104d</color>
+    <color name="black_overlay">#66000000</color>
 </resources>
diff --git a/build.gradle b/build.gradle
index b3b1258..4a706d9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,9 +3,10 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 07370df..251b446 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Jan 07 04:32:02 EST 2018
+#Tue Oct 02 14:29:40 IST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip