map activity background changed

app/src/main/java/com/example/paktalin/lavina/MainActivity.java

@@ -40,6 +40,7 @@ public class MainActivity extends AppCompatActivity
 
         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
+        getSupportActionBar().setTitle("Home");
 
         DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
         ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(

app/src/main/res/layout-v21/app_bar_main.xml

@@ -11,14 +11,12 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay"
-        android:background="@android:color/transparent"
-        >
+        android:background="@android:color/transparent">
 
         <android.support.v7.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
-            android:background="@android:color/transparent"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
     </android.support.design.widget.AppBarLayout>

app/src/main/res/layout/map_activity.xml

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    android:background="@drawable/red_background">
 
     <RelativeLayout
         android:id="@+id/map_title"
         android:orientation="vertical"
         android:layout_width="match_parent"
         android:layout_height="50dp"
-        android:background="@color/colorPrimary">
+        android:background="@android:color/transparent">
 
         <TextView
             android:layout_width="wrap_content"
@@ -35,7 +36,7 @@
         android:layout_alignParentBottom="true"
         android:layout_alignParentLeft="true"
         android:layout_alignParentStart="true"
-        android:background="@color/colorPrimary">
+        android:background="@android:color/transparent">
 
         <RelativeLayout
             android:layout_width="wrap_content"