title: change android label name and color in androidmanifestfile
body: <p>Hi i have to developed one sample app.Here i wish to select the app name is Admin Login and gravity is center and background color is #465371 ,textcolor is #ffffffff.now i have to run the app means the label name only changed here.the gravity and background,textcolor is does not change here.please give me solutions for this.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.androidlogin.ws"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  &lt;uses-sdk android:minSdkVersion="8" /&gt;
  
  &lt;application
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name" &gt;
      &lt;activity
          android:name=".AndroidLoginExampleActivity"
          android:label="Admin Login"  android:background="#465371" android:textColor="#ffffffff" android:gravity="center"&gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
  
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
    &lt;/application&gt;
  
    &lt;/manifest&gt;
  </code></pre>
  
  <p>i got the o/p like this:</p>
  
  <p><img src="https://i.stack.imgur.com/pBV1k.png" alt="enter image description here"></p>