title: Change NvaigationView SubHeader color
body: <p>I have a navigationview that has a subheader and I want to change the text color, I tried everything I know and nothing works.</p>
  
  <p>That is my menu:
  <a href="https://i.stack.imgur.com/b10II.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b10II.png" alt="enter image description here"></a></p>
  
  <p>I want to change the "sub" text color and the list divider color.</p>
  
  <p>Any idea?</p>
  
  <p>My Code:</p>
  
  <p><code>menu.xml</code></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  &lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt;
  
  &lt;group android:checkableBehavior="single"&gt;
      &lt;item
          android:id="@+id/navigation_item_1"
          android:icon="@mipmap/ic_launcher"
          android:checked="true"
          android:title="teste"/&gt;
      &lt;item
          android:id="@+id/navigation_item_2"
          android:icon="@mipmap/ic_launcher"
          android:title="teste"/&gt;
  &lt;/group&gt;
  
  &lt;item
      android:id="@+id/navigation_subheader"
      android:title="sub"&gt;
      &lt;menu&gt;
          &lt;item
              android:id="@+id/navigation_sub_item_1"
              android:icon="@mipmap/ic_launcher"
              android:title="teste"/&gt;
          &lt;item
              android:id="@+id/navigation_sub_item_2"
              android:icon="@mipmap/ic_launcher"
              android:title="teste"/&gt;
      &lt;/menu&gt;
  &lt;/item&gt;
  &lt;/menu&gt;
  </code></pre>
  
  <p><code>activity_main.xml</code></p>
  
  <pre><code>[...]
  &lt;android.support.design.widget.NavigationView
      android:id="@+id/navigation"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:layout_gravity="top"
      android:nestedScrollingEnabled="true"
      app:menu="@menu/activity_main_drawer"
      app:headerLayout="@layout/nav_header_main"
      app:itemTextColor="@color/menu_item"
      app:itemIconTint="@color/headerMenuTextDisabled"
      android:layout_above="@+id/version"
      /&gt;
  [...]
  </code></pre>
  
  <p><code>menu_item.xml</code></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt;
      &lt;item android:color="@color/headerMenuText" android:state_pressed="true"/&gt;
      &lt;item android:color="@color/headerMenuTextDisabled" android:state_enabled="false"/&gt;
      &lt;item android:color="@color/headerMenuText"/&gt;
  &lt;/selector&gt;
  </code></pre>