diff --git a/ZeroSpace/ZeroSpace.MapEditor/ZeroSpace.MapEditor.csproj b/ZeroSpace/ZeroSpace.MapEditor/ZeroSpace.MapEditor.csproj
index e754a19..5810b22 100644
--- a/ZeroSpace/ZeroSpace.MapEditor/ZeroSpace.MapEditor.csproj
+++ b/ZeroSpace/ZeroSpace.MapEditor/ZeroSpace.MapEditor.csproj
@@ -25,6 +25,8 @@
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Maui.Controls" Version="10.0.110" />
 		<PackageReference Include="CommunityToolkit.Maui.Core" Version="15.0.1" />
+		<!-- In-game galaxy map screenshot shown as the canvas background. -->
+		<MauiAsset Include="Resources\Raw\galaxymap.png" />
 	</ItemGroup>
 
 </Project>