title: Change Toolbar overflow icon color
body: <p>I have an <code>android.support.v7.widget</code> Toolbar in my Android app. The background color of this is bright orange and the best looking color on top of this would be white instead of black.</p>
  
  <p>I have the default color on black and not white. Since it would conflict with other stuff, that is almost impossible to override. <strong>I cannot change the primary text color to white!</strong></p>
  
  <p>I've managed to change the title color. 
  <strong>What I'm looking for right now is how I can change the action button color as well (to white).</strong></p>
  
  <p><a href="https://i.stack.imgur.com/r6gQI.png" rel="noreferrer"><img src="https://i.stack.imgur.com/r6gQI.png" alt="enter image description here"></a></p>
  
  <p>My code:</p>
  
  <p>Main activity:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  tools:context=".UI.activities.MainActivity"&gt;
  
  &lt;android.support.v7.widget.Toolbar
      android:id="@+id/r2_toolbar"
      android:layout_width="match_parent"
      android:layout_height="?attr/actionBarSize"
      android:background="?attr/colorPrimary"
      android:elevation="4dp"
      app:titleTextColor="@color/primary_text_material_light"
      app:subtitleTextColor="@color/primary_text_material_light"
      android:theme="@style/R2Theme.Toolbar"/&gt;
  
  &lt;fragment android:name="com.r2retail.r2retailapp.UI.fragments.SetupFragment"
      android:layout_below="@+id/r2_toolbar"
      android:id="@+id/list"
      android:layout_weight="1"
      android:layout_width="match_parent"
      android:layout_height="match_parent" /&gt;
  
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>Menu bar:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;menu xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"&gt;
  
  &lt;item android:id="@+id/about"
      android:icon="@drawable/ic_menu"
      android:title="About"
      app:showAsAction="never"/&gt;
  
  &lt;/menu&gt;
  </code></pre>
  
  <p>Styles:</p>
  
  <pre><code>&lt;resources&gt;
  
  &lt;style name="R2Theme" parent="Theme.AppCompat.Light.NoActionBar"&gt;=
      &lt;item name="colorPrimary"&gt;@color/colorPrimary&lt;/item&gt;
      &lt;item name="colorPrimaryDark"&gt;@color/colorPrimaryDark&lt;/item&gt;
      &lt;item name="colorAccent"&gt;@color/colorPrimary&lt;/item&gt;
      &lt;item name="android:textColorPrimary"&gt;@color/secondary_text_material_dark&lt;/item&gt;
      &lt;item name="android:textColorSecondaryInverse"&gt;@color/primary_text_material_light&lt;/item&gt;
  &lt;/style&gt;
  
  &lt;style name="R2Theme.Toolbar" parent="R2Theme"&gt;
      &lt;item name="actionMenuTextColor"&gt;@color/primary_text_material_light&lt;/item&gt;
  &lt;/style&gt;
  
  &lt;/resources&gt;
  </code></pre>