SKMC.UI/SKMC.UI.DesignApp/Views/MainView.xaml

<Window x:Class="SKMC.UI.DesignApp.Views.MainView"
        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:SKMC.UI.DesignApp.Views"
        xmlns:prism="http://prismlibrary.com/"
        prism:ViewModelLocator.AutoWireViewModel="True"
        mc:Ignorable="d"
        Title="SKMC.UI.DesignApp" Height="800" Width="1200"
        Background="{StaticResource Brush.DarkBackground}">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Border Background="{StaticResource Brush.Background}">
            <StackPanel Orientation="Horizontal">
                <RadioButton Style="{StaticResource RadioButton.Primary}"
                             Width="120"
                             Height="45"
                             Content="All Icons"
                             IsChecked="True"
                             Command="{Binding RequestNavigateViewCommand}"
                             CommandParameter="AllIconsView"/>
                <RadioButton Style="{StaticResource RadioButton.Primary}"
                             Width="120"
                             Height="45"
                             Content="Basic Controls"
                             Command="{Binding RequestNavigateViewCommand}"
                             CommandParameter="BasicControlsView"/>
            </StackPanel>
        </Border>
        <Border Grid.Row="1">
            <ContentControl prism:RegionManager.RegionName="MainViewTapRegion"/>
        </Border>
    </Grid>
</Window>