App.xaml

<Application
    x:Class="Transhef.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:controls="using:Microsoft.UI.Xaml.Controls"
    xmlns:local="using:Transhef">
    <Application.Resources>
        <controls:XamlControlsResources>
            <controls:XamlControlsResources.MergedDictionaries>
                <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:contract7Present="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractPresent(Windows.Foundation.UniversalApiContract,7)"
  xmlns:contract6Present="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractPresent(Windows.Foundation.UniversalApiContract,6)"
  xmlns:contract6NotPresent="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractNotPresent(Windows.Foundation.UniversalApiContract,6)"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
                    <CornerRadius x:Key="ListViewItemCornerRadius">20</CornerRadius>
                    <x:Boolean x:Key='ListViewItemSelectionIndicatorVisualEnabled'>False</x:Boolean>
                    <StaticResource x:Key="ListViewItemBackgroundSelected" ResourceKey="AccentFillColorDefaultBrush" />
                    <StaticResource x:Key="ListViewItemBackgroundSelectedPointerOver" ResourceKey="AccentFillColorDefaultBrush" />
                    <StaticResource x:Key="ListViewItemForegroundSelected" ResourceKey="TextOnAccentFillColorPrimaryBrush" />
                    <x:Double x:Key="ListViewItemMinWidth">30</x:Double>
                </ResourceDictionary>
            </controls:XamlControlsResources.MergedDictionaries>
        </controls:XamlControlsResources>
    </Application.Resources>
</Application>