title: Set menu overflow icon to be white
body: <p>I have a dummy app that I'm making just to get the hang of Android development. I managed to get a menu overflow icon to appear on my toolbar, but I can't seem to figure out how to change it to white.</p>
  
  <p>I'm using a Toolbar widget (without support libraries; that's something I don't want to do).</p>
  
  <p>Here is what I have:
  <img src="https://i.stack.imgur.com/UFmNz.png" alt="enter image description here"></p>
  
  <p>I just want to make the overflow menu white.</p>
  
  <p><strong>styles.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;resources&gt;
  &lt;style name="AppTheme" parent="android:Theme.Material.Light.DarkActionBar"&gt;
      &lt;item name="android:windowNoTitle"&gt;true&lt;/item&gt;
      &lt;item name="android:windowActionBar"&gt;false&lt;/item&gt;
  
      &lt;item name="android:colorPrimary"&gt;@color/primary&lt;/item&gt;
      &lt;item name="android:colorPrimaryDark"&gt;@color/primary_dark&lt;/item&gt;
      &lt;item name="android:colorAccent"&gt;@color/accent&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p></p>