title: Navigation drawer item icon not showing original colour
body: <p>I'm trying to show an icon next to an item within my menu for my navigation drawer, but for some reason the icon always appears in grey rather than the original colour (brown). Is there any way of preventing this from happening in order to show the icon's original colour?</p>
  
  <p><strong>MainActivity.java</strong></p>
  
  <pre><code>public class MainActivity extends AppCompatActivity {
  
      private DrawerLayout mDrawerLayout;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
  
          NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
          if (navigationView != null) {
              setupDrawerContent(navigationView);
          }
      }
  
      private void setupDrawerContent(NavigationView navigationView) {
          navigationView.setNavigationItemSelectedListener(
                  new NavigationView.OnNavigationItemSelectedListener() {
              @Override
              public boolean onNavigationItemSelected(MenuItem menuItem) {
                  mDrawerLayout.closeDrawers();
  
                  return true;
              }
          });
      }
  }
  </code></pre>
  
  <p><strong>drawer_view.xml</strong></p>
  
  <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt;
      &lt;item android:title="Section"&gt;
          &lt;menu&gt;
              &lt;item
                  android:id="@+id/navigation_item_1"
                  android:icon="@drawable/ic_browncircle"
                  android:title="Sub item 1" /&gt;
          &lt;/menu&gt;
      &lt;/item&gt;
  &lt;/menu&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/bb34ml.png" alt="enter image description here"></p>