diff --git a/SourceCode/Directory.Build.props b/SourceCode/Directory.Build.props
new file mode 100644
index 0000000..5add2ee
--- /dev/null
+++ b/SourceCode/Directory.Build.props
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <SignAssembly>True</SignAssembly>
+    <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)\public.snk</AssemblyOriginatorKeyFile>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/SourceCode/References/Core31/netcoreapp3.1/Panuon.WPF.UI.dll b/SourceCode/References/Core31/netcoreapp3.1/Panuon.WPF.UI.dll
index 0d5e841..8018262 100644
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index 9dedb94..84e90a4 100644
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diff --git a/SourceCode/References/Net45/Panuon.WPF.UI.dll b/SourceCode/References/Net45/Panuon.WPF.UI.dll
index 58e63a9..0454610 100644
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index 4d5cbfb..ee89468 100644
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diff --git a/SourceCode/References/Net462/Panuon.WPF.UI.dll b/SourceCode/References/Net462/Panuon.WPF.UI.dll
index 5e6fa84..607f14b 100644
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index f4b35f0..e48b3fc 100644
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diff --git a/SourceCode/References/Net472/Panuon.WPF.UI.dll b/SourceCode/References/Net472/Panuon.WPF.UI.dll
index a878069..54a0875 100644
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index 788f14f..eba1733 100644
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diff --git a/SourceCode/References/Net48/Panuon.WPF.UI.dll b/SourceCode/References/Net48/Panuon.WPF.UI.dll
index ed37f6a..76155a5 100644
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index db8d768..61ca565 100644
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diff --git a/SourceCode/References/Net5/net5.0-windows/Panuon.WPF.UI.dll b/SourceCode/References/Net5/net5.0-windows/Panuon.WPF.UI.dll
index e41ce0a..2f6d9fb 100644
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diff --git a/SourceCode/References/Net5/net5.0-windows/Panuon.WPF.dll b/SourceCode/References/Net5/net5.0-windows/Panuon.WPF.dll
index 4d5cbfb..ac2b9ea 100644
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diff --git a/SourceCode/References/Net6/net6.0-windows/Panuon.WPF.UI.dll b/SourceCode/References/Net6/net6.0-windows/Panuon.WPF.UI.dll
index 77675ef..4a8c6ed 100644
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diff --git a/SourceCode/References/Net6/net6.0-windows/Panuon.WPF.dll b/SourceCode/References/Net6/net6.0-windows/Panuon.WPF.dll
index a746a8f..30f4506 100644
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diff --git a/SourceCode/public.snk b/SourceCode/public.snk
new file mode 100644
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