Did something change with NavigationView in WinAppSDK 1.3?

[torleifat]

So I've been working on an application which uses a NavigationView with PaneDisplayMode set to Top, in fullscreen on a touch enabled device. When upgrading to WinAppSDK 1.3 I noticed some margins that did not exist in 1.2 showing up in my NavigationView.

With 1.2:

With 1.3:

As you can see there is now a new border around each element that was not there earlier.

Here is a scaled down example version of what I do (which these images were captured from):

<Page
    x:Class="NavigationTopBarTest.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:NavigationTopBarTest"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

  <Page.Resources>
    <DataTemplate x:Key="MenuTemplate" x:DataType="local:MenuItem">
      <NavigationViewItem Tag="{x:Bind Name}">
        <FontIcon FontSize="28" Glyph="{x:Bind Icon}"/>
      </NavigationViewItem>
    </DataTemplate>
  </Page.Resources>

  <Grid>
      <Grid.RowDefinitions>
        <RowDefinition Height="56"/>
        <RowDefinition Height="*"/>
      </Grid.RowDefinitions>
        <NavigationView Grid.Row="0" MenuItemsSource="{x:Bind MenuItems}" 
                        IsSettingsVisible="False"
                        PaneDisplayMode="Top"
                        IsBackEnabled="False"
                        IsBackButtonVisible="Collapsed"
                        MenuItemTemplate="{StaticResource MenuTemplate}"
                        IsTabStop="True"
                        BorderThickness="0"
                        Margin="-4 0 0 0">
          <NavigationView.Resources>
            <ResourceDictionary>
			<x:Double x:Key="NavigationViewTopPaneHeight">56</x:Double>
			<SolidColorBrush  Color="Transparent" x:Key="NavigationViewSelectionIndicatorForeground"></SolidColorBrush>

			<SolidColorBrush  x:Key="TopNavigationViewItemBackgroundPointerOver" Color="{ThemeResource SystemAccentColor}"></SolidColorBrush>
			<SolidColorBrush  x:Key="TopNavigationViewItemBackgroundSelected" Color="{ThemeResource SystemAccentColor}"></SolidColorBrush>
			<SolidColorBrush  x:Key="TopNavigationViewItemBackgroundSelectedPointerOver" Color="{ThemeResource SystemAccentColor}"></SolidColorBrush>
			<SolidColorBrush  x:Key="TopNavigationViewItemBackgroundSelectedPressed" Color="{ThemeResource SystemAccentColor}"></SolidColorBrush>

			<SolidColorBrush  Color="White" x:Key="TopNavigationViewItemForegroundPointerOver"></SolidColorBrush>
			<SolidColorBrush  Color="White" x:Key="TopNavigationViewItemForegroundPressed"></SolidColorBrush>

			<SolidColorBrush  Color="White" x:Key="TopNavigationViewItemForegroundSelected"></SolidColorBrush>
			<SolidColorBrush  Color="White" x:Key="TopNavigationViewItemForegroundSelectedPointerOver"></SolidColorBrush>
			<SolidColorBrush  Color="White" x:Key="TopNavigationViewItemForegroundSelectedPressed"></SolidColorBrush>

			<CornerRadius x:Key="ControlCornerRadius">0,0,0,0</CornerRadius>
			<CornerRadius x:Key="OverlayCornerRadius">0,0,0,0</CornerRadius>
		</ResourceDictionary>
          </NavigationView.Resources>
	</NavigationView>
    <StackPanel Grid.Row="1" Background="LightGreen"></StackPanel>
  </Grid>
</Page>

Previously the only change to margin I did was a slight left-hand side adjustment to get it all the way to the edge. But with 1.3 it seems I have gotten a whole bunch of extra margins that I do not want.

Does anyone know if these are intended changes that I've just missed?

[torleifat]

If anyone in the future should run in to a similar situation: I found out I could tweak TopNavigationViewItemMargin to achieve the same result as before.
In NavigationView.Resources' ResourceDictionary I put <Thickness x:Key="TopNavigationViewItemMargin">-2,-2,-6,-2</Thickness>