title: Is it possible to change Facebook login button image in Facebook Android SDK3?
body: <p>Facebook Android sdk  has a <code>com.facebook.widget.LoginButton</code></p>
  
  <p>I want to put my own image for the Login button. Is it possible ?</p>
  
  <p>So far i've tried adding <code>android:src="@drawable/facebook"</code> to the layout file as an attribute to the button element with no luck</p>