How do I use Entypo icon in mahapps hamburger menu?
I've tried many ways but nothing works. Below is my xaml code:

```
<controls:HamburgerMenu.ItemsSource>
   <controls:HamburgerMenuItemCollection>
      <controls:HamburgerMenuIconItem Icon="{iconPacks:PackIconEntypo Kind=Users}" Label="Accounts">
         <controls:HamburgerMenuIconItem.Tag>
             <views:AccountsView/>
         </controls:HamburgerMenuIconItem.Tag>
      </controls:HamburgerMenuIconItem>
   </controls:HamburgerMenuItemCollection>
</controls:HamburgerMenu.ItemsSource>

```