App.xaml

<Application
    x:Class="Ice_Breaking.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Ice_Breaking">
    <Application.Resources>
        <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
    </Application.Resources>
</Application>
<!--
New-SelfSignedCertificate -Type Custom -Subject "CN=HoraceHYY" -KeyUsage DigitalSignature -FriendlyName "Horace's Certificate" -CertStoreLocation "Cert:\LocalMachine\My" -TextExtension @("2.5.29.37={text}1.3.6.1.5.5.7.3.3", "2.5.29.19={text}")
Export-PfxCertificate -cert Cert:\LocalMachine\My\C1D3BFCAF7749890D4B23BCC205B29F551575FA6 -FilePath D:\vs prj.pfx -ProtectTo D
thumbprint: C1D3BFCAF7749890D4B23BCC205B29F551575FA6
$password = ConvertTo-SecureString -String hyy12345 -Force -AsPlainText 
Export-PfxCertificate -cert "Cert:\LocalMachine\My\C1D3BFCAF7749890D4B23BCC205B29F551575FA6" -FilePath D:\ice_breaking_cert.pfx -Password $password
SignTool sign /fd SHA256 /a /f D:\VS_prj\ice_breaking\Ice_Breaking\AppPackages\ice_breaking_cert.pfx /p hyy12345 D:\VS_prj\ice_breaking\Ice_Breaking\AppPackages\Ice_Breaking_0.9.2.0_x64_Test\Ice_Breaking_0.9.2.0_x64.msix
-->