PettingZoo/App.xaml

<Application xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             x:Class="PettingZoo.App"
             Startup="ApplicationStartup">
  <Application.Resources>
      <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Style.xaml"/>
                <ResourceDictionary Source="Icons.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
  </Application.Resources>
</Application>