MainWindow.xaml

<Window x:Class="FolderThumbnailExplorer.MainWindow"
		xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
		xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
		xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
		xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
		xmlns:local="clr-namespace:FolderThumbnailExplorer"
		xmlns:view="clr-namespace:FolderThumbnailExplorer.View"
		xmlns:viewmodel="clr-namespace:FolderThumbnailExplorer.ViewModel"
		d:DataContext="{d:DesignInstance Type=viewmodel:MainViewModel}"
		mc:Ignorable="d"
		Title="Folder Explorer"
		d:Height="600"
		d:Width="800"
		Background="#1E1E1E">
	<Window.Resources>
		<ResourceDictionary>
			<ResourceDictionary.MergedDictionaries>
				<ResourceDictionary Source="pack://application:,,,/View/GlobalResourceDict.xaml" />
			</ResourceDictionary.MergedDictionaries>
		</ResourceDictionary>
	</Window.Resources>
	<Grid>
		<Grid.ColumnDefinitions>
			<ColumnDefinition Width="88"
							  MaxWidth="200" />
			<ColumnDefinition Width="*" />
		</Grid.ColumnDefinitions>
		<view:NavSideBar Grid.Column="0"
						 Margin="0,0,5,0" />
		<GridSplitter Grid.Column="0"
					  HorizontalAlignment="Right"
					  Focusable="False"
					  Background="AliceBlue"
					  Width="4" />
		<ContentControl Grid.Column="1"
						Content="{Binding NavSideBarViewModel.RightView, Mode=OneWay}" />
	</Grid>
</Window>