title: Android: AppCompat 21, how to change the back icon and the overflow icon to a custom one?
body: <p>On my project until some days ago I used sherlock actionbar but I dicided to change the whole actionbar style to the new material design. On my old theme for the back and overflow icon I had some custom icons setted on my theme. But on the appcompat I tried define it on my theme where I use it on a toolbar but it's not working. Anyone knows how to make this possible?</p>
  
  <p><strong>My theme where I use on the toolbar(Generated with asset studio):</strong></p>
  
  <pre><code>&lt;style name="Theme.Themewiz" parent="@style/Theme.AppCompat.Light.DarkActionBar"&gt;
      &lt;item name="android:actionBarStyle"&gt;@style/ActionBar.Solid.Themewiz&lt;/item&gt;
  
      &lt;item name="android:actionBarItemBackground"&gt;@drawable/selectable_background_themewiz&lt;/item&gt;
      &lt;item name="android:popupMenuStyle"&gt;@style/PopupMenu.Themewiz&lt;/item&gt;
      &lt;item name="android:dropDownListViewStyle"&gt;@style/DropDownListView.Themewiz&lt;/item&gt;
      &lt;item name="android:actionBarTabStyle"&gt;@style/ActionBarTabStyle.Themewiz&lt;/item&gt;
      &lt;item name="android:actionDropDownStyle"&gt;@style/DropDownNav.Themewiz&lt;/item&gt;
      &lt;item name="android:actionModeBackground"&gt;@drawable/cab_background_top_themewiz&lt;/item&gt;
      &lt;item name="android:actionModeSplitBackground"&gt;@drawable/cab_background_bottom_themewiz&lt;/item&gt;
      &lt;item name="android:actionModeCloseButtonStyle"&gt;@style/ActionButton.CloseMode.Themewiz&lt;/item&gt;
  
              &lt;!-- Light.DarkActionBar specific --&gt;
      &lt;item name="android:actionBarWidgetTheme"&gt;@style/Theme.Themewiz.Widget&lt;/item&gt;
  
      &lt;item name="android:actionOverflowButtonStyle"&gt;@style/Theme.AppCompat.Overflow&lt;/item&gt;
  
  &lt;/style&gt;
  
  &lt;style parent="@style/Widget.AppCompat.ActionButton.Overflow" name="Theme.AppCompat.Overflow"&gt;
  
      &lt;item name="android:src"&gt;@drawable/ic_action_overflow&lt;/item&gt;
  
  &lt;/style&gt;
  </code></pre>
  
  <p>Toolbar xml:</p>
  
  <pre><code>&lt;android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/my_awesome_toolbar"
      android:layout_height="wrap_content"
      android:layout_width="match_parent"
      android:minHeight="?attr/actionBarSize"
      android:background="?attr/colorPrimaryDark"
      app:theme="@style/Theme.Themewiz"
      app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/&gt;
  </code></pre>