title: Add custom icon to drawer navigation
body: <p>I am trying to add custom icon to my CustomDrawerComponent, but nothing happen...</p>
  
  <p>App.js :</p>
  
  <pre><code>const navigationOptions = {
    headerTintColor: colors.white,
  };
  
  const drawerNavigationOption = ({ navigation }) =&gt; ({
    ...navigationOptions,
    headerLeft: (
      &lt;TouchableOpacity onPress={() =&gt; navigation.toggleDrawer()}&gt;
        &lt;View&gt;
          &lt;Icon name="menu" size={24} color={colors.white} /&gt;
        &lt;/View&gt;
      &lt;/TouchableOpacity&gt;
    ),
  });
  
  const MapsStackNavigator = createStackNavigator({
    MapsNavigator: {
      screen: MapsScreen,
      navigationOptions: drawerNavigationOption,
    },
  });
  
  const AppDrawerNavigator = createDrawerNavigator(
    {
      Plans: MapsStackNavigator,
    },
    {
      contentComponent: CustomDrawerMenu,
      contentOptions: {
        inactiveTintColor: colors.doveGrey,
        activeTintColor: colors.doveGrey,
      },
    }
  );
  </code></pre>
  
  <p>My CustomDrawerMenu.js :</p>
  
  <pre><code>export default class CustomDrawerMenu extends Component {
    render() {
      return (
        &lt;ScrollView
          contentContainerStyle={{
            flex: 1,
            flexDirection: "column",
            justifyContent: "space-between",
          }}
        &gt;
          &lt;SafeAreaView forceInset={{ top: "always", horizontal: "never" }}&gt;
            {...}
            &lt;DrawerItems {...this.props} /&gt;
          &lt;/SafeAreaView&gt;
          {...}
        &lt;/ScrollView&gt;
      );
    }
  }
  </code></pre>
  
  <p>My MapsScreen :</p>
  
  <pre><code>export default class MapsScreen extends React.Component {
    static navigationOptions = {
      drawerIcon: (
        &lt;Image
          style={{ width: 24, height: 24 }}
          source={require("../../assets/icons/plan.png")}
        /&gt;
      ),
      title: "Plans",
    };
  
    render() {
      return (
        &lt;Text&gt;My map screen&lt;/Text&gt;
      );
    }
  }
  </code></pre>
  
  <p>But absolutely nothing happened... I tried to add <code>drawerIcon</code> to my <code>App.js &gt; const navigationOptions</code> but nothing happened aswell.</p>
  
  <p>I do not really know where to place drawerIconm because I search on the doc, on some YouTubes video and when I reproduced the same, it does not work.</p>
  
  <p>Thank you.</p>