dotnet/sdk/9.0.313/Sdks/Microsoft.NET.Sdk.WindowsDesktop/targets/Microsoft.NET.Sdk.WindowsDesktop.WindowsForms.props

<!--
    This props file comes from dotnet/winforms. It gets ingested by dotnet/wpf and processed by
    packaging/Microsoft.NET.Sdk.WindowsDesktop project.
    
    It is referenced via Microsoft.NET.Sdk.WindowsDesktop/targets/Microsoft.NET.Sdk.WindowsDesktop.props.
   -->

<Project>
  <!--
    ============================================================
                      GenerateImplicitNamespaceImports
    Generates implicit namespace imports source to intermediate directory for Windows Forms projects
    ============================================================
    -->
  <ItemGroup Condition="'$(UseWindowsForms)' == 'true' and ('$(ImplicitUsings)' == 'true' or '$(ImplicitUsings)' == 'enable')">
    <!--
      SDK defines the following global usings:
      * System
      * System.Collections.Generic
      * System.Linq
      * System.Threading.Tasks
    -->
    <Using Include="System.Drawing" />
    <Using Include="System.Windows.Forms" />
  </ItemGroup>

  <!-- Windows Forms source generator and analyzers -->
  <Import Project="System.Windows.Forms.Analyzers.props" />

</Project>