From 7679b9e3cf1da4aad78ecd605b55d2e84674f527 Mon Sep 17 00:00:00 2001
From: paulober <44974737+paulober@users.noreply.github.com>
Date: Tue, 23 Dec 2025 21:19:35 +0100
Subject: [PATCH 01/11] Add support for Composer Icons

Signed-off-by: paulober <44974737+paulober@users.noreply.github.com>
---
 msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs  | 34 +++++++++-------
 .../TaskTests/ACToolTaskTest.cs               | 40 +++++++++++++++++++
 2 files changed, 59 insertions(+), 15 deletions(-)

diff --git a/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs b/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs
index f7dfbcd5a93d..111f8c21184a 100644
--- a/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs
+++ b/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs
@@ -257,7 +257,7 @@ void FindXCAssetsDirectory (string main, string secondary, out string mainResult
 			mainResult = main;
 			secondaryResult = secondary;
 
-			while (!string.IsNullOrEmpty (mainResult) && !mainResult.EndsWith (".xcassets", StringComparison.OrdinalIgnoreCase)) {
+			while (!string.IsNullOrEmpty (mainResult) && !mainResult.EndsWith (".xcassets", StringComparison.OrdinalIgnoreCase) && !mainResult.EndsWith (".icon", StringComparison.OrdinalIgnoreCase)) {
 				mainResult = Path.GetDirectoryName (mainResult)!;
 				if (!string.IsNullOrEmpty (secondaryResult))
 					secondaryResult = Path.GetDirectoryName (secondaryResult)!;
@@ -296,13 +296,13 @@ public override bool Execute ()
 					var vpath = BundleResource.GetVirtualProjectPath (this, imageAsset);
 					var catalogFullPath = imageAsset.GetMetadata ("FullPath");
 
-					// get the parent (which will typically be .appiconset, .launchimage, .imageset, .iconset, etc)
+					// get the parent (which will typically be .appiconset, .launchimage, .imageset, .iconset, .icon, etc)
 					var catalog = Path.GetDirectoryName (vpath);
 					catalogFullPath = Path.GetDirectoryName (catalogFullPath);
 
 					var assetType = Path.GetExtension (catalog).TrimStart ('.');
 
-					// keep walking up the directory structure until we get to the .xcassets directory
+					// keep walking up the directory structure until we get to the .xcassets or .icon directory
 					FindXCAssetsDirectory (catalog, catalogFullPath, out var catalog2, out var catalogFullPath2);
 					catalog = catalog2;
 					catalogFullPath = catalogFullPath2;
@@ -329,11 +329,11 @@ public override bool Execute ()
 					continue;
 				}
 
-				// filter out everything except paths containing a Contents.json file since our main processing loop only cares about these
-				if (Path.GetFileName (vpath) != "Contents.json")
-					continue;
-
-				items.Add (asset);
+				// Handle both Contents.json (for .xcassets) and icon.json (for .icon folders)
+				var fileName = Path.GetFileName (vpath);
+				if (fileName == "Contents.json" || fileName == "icon.json") {
+					items.Add (asset);
+				}
 			}
 
 			// clone any *.xcassets dirs that need cloning
@@ -374,8 +374,9 @@ public override bool Execute ()
 
 						File.Copy (src, dest, true);
 
-						// filter out everything except paths containing a Contents.json file since our main processing loop only cares about these
-						if (Path.GetFileName (vpath) != "Contents.json")
+						// Handle both Contents.json (for .xcassets) and icon.json (for .icon folders)
+						var fileName = Path.GetFileName (vpath);
+						if (fileName != "Contents.json" && fileName != "icon.json")
 							continue;
 
 						item = new TaskItem (dest);
@@ -384,8 +385,9 @@ public override bool Execute ()
 						FindXCAssetsDirectory (Path.GetFullPath (dest), "", out var catalogFullPath, out var _);
 						items.Add (new AssetInfo (item, vpath, asset.Catalog, catalogFullPath, asset.AssetType));
 					} else {
-						// filter out everything except paths containing a Contents.json file since our main processing loop only cares about these
-						if (Path.GetFileName (vpath) != "Contents.json")
+						// Handle both Contents.json (for .xcassets) and icon.json (for .icon folders)
+						var fileName = Path.GetFileName (vpath);
+						if (fileName != "Contents.json" && fileName != "icon.json")
 							continue;
 
 						items.Add (asset);
@@ -393,7 +395,7 @@ public override bool Execute ()
 				}
 			}
 
-			// Note: `items` contains only the Contents.json files at this point
+			// Note: `items` contains only the Contents.json and icon.json files at this point
 			for (int i = 0; i < items.Count; i++) {
 				var asset = items [i];
 				var assetItem = asset.Item;
@@ -409,8 +411,9 @@ public override bool Execute ()
 						brandAssetsInAssets.Add (Path.GetFileNameWithoutExtension (Path.GetDirectoryName (vpath)));
 					}
 				} else {
-					if (assetType.Equals ("appiconset", StringComparison.OrdinalIgnoreCase))
+					if (assetType.Equals ("appiconset", StringComparison.OrdinalIgnoreCase) || assetType.Equals ("icon", StringComparison.OrdinalIgnoreCase)) {
 						appIconsInAssets.Add (Path.GetFileNameWithoutExtension (Path.GetDirectoryName (vpath)));
+					}
 				}
 
 				if (unique.Add (catalog)) {
@@ -420,7 +423,8 @@ public override bool Execute ()
 					catalogs.Add (item);
 				}
 
-				if (SdkPlatform != "WatchSimulator") {
+				// Only process Contents.json files for on-demand resources (not icon.json files)
+				if (SdkPlatform != "WatchSimulator" && Path.GetFileName (vpath) == "Contents.json") {
 					var text = File.ReadAllText (assetItem.ItemSpec);
 
 					if (string.IsNullOrEmpty (text))
diff --git a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
index 75f52139b7af..acbb82abd4a1 100644
--- a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
+++ b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
@@ -634,5 +634,45 @@ public void XSAppIconAssetsAndAppIcon (ApplePlatform platform)
 			ExecuteTask (actool, 1);
 			Assert.AreEqual ("Can't specify both 'XSAppIconAssets' in the Info.plist and 'AppIcon' in the project file. Please select one or the other.", Engine.Logger.ErrorEvents [0].Message, "Error message");
 		}
+
+		[Test]
+		[TestCase (ApplePlatform.iOS)]
+		[TestCase (ApplePlatform.MacCatalyst)]
+		[TestCase (ApplePlatform.MacOSX)]
+		public void IconFileSupport (ApplePlatform platform)
+		{
+			// Test that .icon folders (Icon Composer format) are recognized as app icons
+			var projectDir = Cache.CreateTemporaryDirectory ();
+			var iconFolderPath = Path.Combine (projectDir, "Resources", "AppIcon.icon");
+			var assetsPath = Path.Combine (iconFolderPath, "Assets");
+			Directory.CreateDirectory (assetsPath);
+			
+			// Create a dummy icon.json file (simplified structure for testing)
+			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
+			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+			
+			// Create a dummy image file in the Assets folder
+			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
+			File.WriteAllText (imagePath, "dummy image");
+
+			var actool = CreateACToolTask (
+				platform,
+				projectDir,
+				out var _,
+				iconJsonPath + "|Resources/AppIcon.icon/icon.json",
+				imagePath + "|Resources/AppIcon.icon/Assets/icon_512x512.png"
+			);
+			actool.AppIcon = "AppIcon";
+
+			// The task should recognize AppIcon as a valid icon
+			// Note: This will fail at actool execution since we don't have a real .icon structure,
+			// but we're testing that the icon is recognized in the validation phase
+			ExecuteTask (actool, expectedErrorCount: 1); // Expected to fail at actool execution
+
+			// Verify that no error was logged about the icon not being found
+			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
+			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")), 
+				"Should not report that AppIcon is not found among image resources");
+		}
 	}
 }

From 8d29605d445255e924cc3267b2b65b5581263065 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Thu, 12 Feb 2026 11:48:34 +0100
Subject: [PATCH 02/11] [msbuild] Improve support for Composer Icons (.icon)

- Add .icon glob patterns to ImageAsset auto-include and BundleResource
  exclusion in Microsoft.Sdk.DefaultItems.template.props
- Fix tvOS support: register .icon assets in both brandAssetsInAssets and
  imageStacksInAssets for primary/alternate icon validation
- Add tvOS test case to IconFileSupport
- Add tests: IconFileSupportWithIncludeAllAppIcons,
  IconFileSupportAsAlternateIcon, InexistentIconFile,
  MixedXCAssetsAndIconFile
- Update DefaultCompilationIncludes.md and build-items.md documentation

Fixes #24132
---
 docs/building-apps/build-items.md             |   3 +-
 dotnet/DefaultCompilationIncludes.md          |   9 +-
 .../Microsoft.Sdk.DefaultItems.template.props |   3 +-
 msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs  |   5 +-
 .../TaskTests/ACToolTaskTest.cs               | 171 +++++++++++++++++-
 5 files changed, 183 insertions(+), 8 deletions(-)

diff --git a/docs/building-apps/build-items.md b/docs/building-apps/build-items.md
index ff18c071b9e6..2fd81202cf18 100644
--- a/docs/building-apps/build-items.md
+++ b/docs/building-apps/build-items.md
@@ -186,7 +186,8 @@ Only applicable to iOS and tvOS projects.
 
 ## ImageAsset
 
-An item group that contains image assets.
+An item group that contains image assets, including files inside asset catalogs
+(\*.xcassets) and Icon Composer directories (\*.icon).
 
 ## InterfaceDefinition
 
diff --git a/dotnet/DefaultCompilationIncludes.md b/dotnet/DefaultCompilationIncludes.md
index 3dec5cdb0a5f..9f14799e6634 100644
--- a/dotnet/DefaultCompilationIncludes.md
+++ b/dotnet/DefaultCompilationIncludes.md
@@ -33,6 +33,13 @@ All \*.pdf, \*.jpg, \*.png and \*.json files inside asset catalogs
 (\*.xcassets) in the project directory or any subdirectory are included by
 default (as `ImageAsset` items).
 
+## Icon Composer files
+
+All files inside Icon Composer directories (\*.icon) in the project directory
+or any subdirectory are included by default (as `ImageAsset` items). Icon
+Composer files are created by Xcode's Icon Composer tool (Xcode 26+) and
+contain layered app icons with `icon.json` metadata.
+
 ## Atlas Textures
 
 All \*.png files inside \*.atlas directories in the project directory or any
@@ -52,7 +59,7 @@ included by default (as `Metal` items).
 
 All files in the Resources/ subdirectory, except any items in the `Compile` or
 `EmbeddedResource` item groups, and except the ones mentioned above
-(\*.scnassets, \*.storyboard, \*.xib, \*.xcassets, \*.atlas, \*.mlmodel,
+(\*.scnassets, \*.storyboard, \*.xib, \*.xcassets, \*.icon, \*.atlas, \*.mlmodel,
 \*.metal) are included by default (as `BundleResource` items).
 
 [1]: https://docs.microsoft.com/en-us/dotnet/core/tools/csproj#default-compilation-includes-in-net-core-projects
diff --git a/dotnet/targets/Microsoft.Sdk.DefaultItems.template.props b/dotnet/targets/Microsoft.Sdk.DefaultItems.template.props
index d705ae3f56c2..afc08fe18531 100644
--- a/dotnet/targets/Microsoft.Sdk.DefaultItems.template.props
+++ b/dotnet/targets/Microsoft.Sdk.DefaultItems.template.props
@@ -24,7 +24,7 @@
 		</None>
 
 		<!-- Default Asset Catalog file inclusion -->
-		<ImageAsset Include="**\*.xcassets\**\*.*" Exclude="$(DefaultItemExcludes);$(DefaultExcludesInProjectFolder);**\*.xcassets\**\*.DS_Store">
+		<ImageAsset Include="**\*.xcassets\**\*.*;**\*.icon\**\*.*" Exclude="$(DefaultItemExcludes);$(DefaultExcludesInProjectFolder);**\*.xcassets\**\*.DS_Store;**\*.icon\**\*.DS_Store">
 			<Link>$([MSBuild]::MakeRelative ('$(MSBuildProjectDirectory)', '%(FullPath)'))</Link>
 			<Visible>false</Visible>
 			<IsDefaultItem>true</IsDefaultItem>
@@ -65,6 +65,7 @@
 			$(DefaultItemExcludes);
 			$(DefaultExcludesInProjectFolder);
 			$(_ResourcePrefix)\**\*.xcassets\**\*.*;
+			$(_ResourcePrefix)\**\*.icon\**\*.*;
 			$(_ResourcePrefix)\**\*.storyboard;**\*.xib;
 			$(_ResourcePrefix)\**\*.atlas\*.png;
 			$(_ResourcePrefix)\**\*.mlmodel;
diff --git a/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs b/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs
index 111f8c21184a..e90031218586 100644
--- a/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs
+++ b/msbuild/Xamarin.MacDev.Tasks/Tasks/ACTool.cs
@@ -405,9 +405,10 @@ public override bool Execute ()
 				var assetType = asset.AssetType;
 
 				if (Platform == ApplePlatform.TVOS) {
-					if (assetType.Equals ("imagestack", StringComparison.OrdinalIgnoreCase)) {
+					if (assetType.Equals ("imagestack", StringComparison.OrdinalIgnoreCase) || assetType.Equals ("icon", StringComparison.OrdinalIgnoreCase)) {
 						imageStacksInAssets.Add (Path.GetFileNameWithoutExtension (Path.GetDirectoryName (vpath)));
-					} else if (assetType.Equals ("brandassets", StringComparison.OrdinalIgnoreCase)) {
+					}
+					if (assetType.Equals ("brandassets", StringComparison.OrdinalIgnoreCase) || assetType.Equals ("icon", StringComparison.OrdinalIgnoreCase)) {
 						brandAssetsInAssets.Add (Path.GetFileNameWithoutExtension (Path.GetDirectoryName (vpath)));
 					}
 				} else {
diff --git a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
index acbb82abd4a1..b18b5b438fc0 100644
--- a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
+++ b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
@@ -637,6 +637,7 @@ public void XSAppIconAssetsAndAppIcon (ApplePlatform platform)
 
 		[Test]
 		[TestCase (ApplePlatform.iOS)]
+		[TestCase (ApplePlatform.TVOS)]
 		[TestCase (ApplePlatform.MacCatalyst)]
 		[TestCase (ApplePlatform.MacOSX)]
 		public void IconFileSupport (ApplePlatform platform)
@@ -646,11 +647,11 @@ public void IconFileSupport (ApplePlatform platform)
 			var iconFolderPath = Path.Combine (projectDir, "Resources", "AppIcon.icon");
 			var assetsPath = Path.Combine (iconFolderPath, "Assets");
 			Directory.CreateDirectory (assetsPath);
-			
+
 			// Create a dummy icon.json file (simplified structure for testing)
 			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
 			File.WriteAllText (iconJsonPath, @"{""version"":1}");
-			
+
 			// Create a dummy image file in the Assets folder
 			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
 			File.WriteAllText (imagePath, "dummy image");
@@ -671,8 +672,172 @@ public void IconFileSupport (ApplePlatform platform)
 
 			// Verify that no error was logged about the icon not being found
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
-			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")), 
+			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
 				"Should not report that AppIcon is not found among image resources");
 		}
+
+		[Test]
+		[TestCase (ApplePlatform.iOS)]
+		[TestCase (ApplePlatform.TVOS)]
+		[TestCase (ApplePlatform.MacCatalyst)]
+		[TestCase (ApplePlatform.MacOSX)]
+		public void IconFileSupportWithIncludeAllAppIcons (ApplePlatform platform)
+		{
+			// Test that .icon folders work with IncludeAllAppIcons
+			var projectDir = Cache.CreateTemporaryDirectory ();
+			var iconFolderPath = Path.Combine (projectDir, "Resources", "AppIcon.icon");
+			var assetsPath = Path.Combine (iconFolderPath, "Assets");
+			Directory.CreateDirectory (assetsPath);
+
+			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
+			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+
+			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
+			File.WriteAllText (imagePath, "dummy image");
+
+			var actool = CreateACToolTask (
+				platform,
+				projectDir,
+				out var _,
+				iconJsonPath + "|Resources/AppIcon.icon/icon.json",
+				imagePath + "|Resources/AppIcon.icon/Assets/icon_512x512.png"
+			);
+			actool.AppIcon = "AppIcon";
+			actool.IncludeAllAppIcons = true;
+
+			ExecuteTask (actool, expectedErrorCount: 1);
+
+			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
+			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
+				"Should not report that AppIcon is not found among image resources");
+		}
+
+		[Test]
+		[TestCase (ApplePlatform.iOS)]
+		[TestCase (ApplePlatform.TVOS)]
+		[TestCase (ApplePlatform.MacCatalyst)]
+		[TestCase (ApplePlatform.MacOSX)]
+		public void IconFileSupportAsAlternateIcon (ApplePlatform platform)
+		{
+			// Test that .icon folders work as alternate app icons
+			var projectDir = Cache.CreateTemporaryDirectory ();
+			var iconFolderPath = Path.Combine (projectDir, "Resources", "AlternateIcon.icon");
+			var assetsPath = Path.Combine (iconFolderPath, "Assets");
+			Directory.CreateDirectory (assetsPath);
+
+			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
+			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+
+			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
+			File.WriteAllText (imagePath, "dummy image");
+
+			// Also need a primary icon for the alternate icon test to make sense
+			var primaryIconPath = Path.Combine (projectDir, "Resources", "AppIcon.icon");
+			var primaryAssetsPath = Path.Combine (primaryIconPath, "Assets");
+			Directory.CreateDirectory (primaryAssetsPath);
+
+			var primaryIconJsonPath = Path.Combine (primaryIconPath, "icon.json");
+			File.WriteAllText (primaryIconJsonPath, @"{""version"":1}");
+
+			var primaryImagePath = Path.Combine (primaryAssetsPath, "icon_512x512.png");
+			File.WriteAllText (primaryImagePath, "dummy image");
+
+			var actool = CreateACToolTask (
+				platform,
+				projectDir,
+				out var _,
+				iconJsonPath + "|Resources/AlternateIcon.icon/icon.json",
+				imagePath + "|Resources/AlternateIcon.icon/Assets/icon_512x512.png",
+				primaryIconJsonPath + "|Resources/AppIcon.icon/icon.json",
+				primaryImagePath + "|Resources/AppIcon.icon/Assets/icon_512x512.png"
+			);
+			actool.AppIcon = "AppIcon";
+			actool.AlternateAppIcons = new ITaskItem [] { new TaskItem ("AlternateIcon") };
+
+			ExecuteTask (actool, expectedErrorCount: 1);
+
+			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
+			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AlternateAppIcon")),
+				"Should not report that AlternateIcon is not found among image resources");
+			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
+				"Should not report that AppIcon is not found among image resources");
+		}
+
+		[Test]
+		[TestCase (ApplePlatform.iOS)]
+		[TestCase (ApplePlatform.TVOS)]
+		[TestCase (ApplePlatform.MacCatalyst)]
+		[TestCase (ApplePlatform.MacOSX)]
+		public void InexistentIconFile (ApplePlatform platform)
+		{
+			// Test that an inexistent .icon-based app icon is correctly reported
+			var projectDir = Cache.CreateTemporaryDirectory ();
+			var iconFolderPath = Path.Combine (projectDir, "Resources", "AppIcon.icon");
+			var assetsPath = Path.Combine (iconFolderPath, "Assets");
+			Directory.CreateDirectory (assetsPath);
+
+			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
+			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+
+			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
+			File.WriteAllText (imagePath, "dummy image");
+
+			var actool = CreateACToolTask (
+				platform,
+				projectDir,
+				out var _,
+				iconJsonPath + "|Resources/AppIcon.icon/icon.json",
+				imagePath + "|Resources/AppIcon.icon/Assets/icon_512x512.png"
+			);
+			actool.AppIcon = "InexistentIcon";
+
+			ExecuteTask (actool, 1);
+
+			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
+			Assert.IsTrue (errorMessages.Any (m => m.Contains ("Can't find the AppIcon 'InexistentIcon'")),
+				"Should report that InexistentIcon is not found among image resources");
+		}
+
+		[Test]
+		[TestCase (ApplePlatform.iOS)]
+		[TestCase (ApplePlatform.MacCatalyst)]
+		[TestCase (ApplePlatform.MacOSX)]
+		public void MixedXCAssetsAndIconFile (ApplePlatform platform)
+		{
+			// Test that .icon folders and .xcassets can coexist in the validation phase
+			var projectDir = Path.Combine (Configuration.SourceRoot, "tests", "dotnet", "AppWithXCAssets", platform.AsString ());
+			var files = Directory.GetFiles (Path.Combine (projectDir, "Resources", "Images.xcassets"), "*", SearchOption.AllDirectories);
+			var imageAssets = files.Select (v => v + "|" + v.Substring (projectDir.Length + 1)).ToList ();
+
+			// Add a .icon folder alongside the existing .xcassets
+			var tmpDir = Cache.CreateTemporaryDirectory ();
+			var iconFolderPath = Path.Combine (tmpDir, "ComposerIcon.icon");
+			var assetsPath = Path.Combine (iconFolderPath, "Assets");
+			Directory.CreateDirectory (assetsPath);
+
+			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
+			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+
+			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
+			File.WriteAllText (imagePath, "dummy image");
+
+			imageAssets.Add (iconJsonPath + "|Resources/ComposerIcon.icon/icon.json");
+			imageAssets.Add (imagePath + "|Resources/ComposerIcon.icon/Assets/icon_512x512.png");
+
+			var actool = CreateACToolTask (
+				platform,
+				projectDir,
+				out var _,
+				imageAssets.ToArray ()
+			);
+			actool.AppIcon = "AppIcons";
+
+			// actool may fail on the dummy .icon content, but the validation phase should pass
+			actool.Execute ();
+
+			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
+			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
+				"Should not report that AppIcon is not found when mixing .xcassets and .icon");
+		}
 	}
 }

From 4d27b7f0355c1c74c7857984cca9ad14373968c7 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Thu, 12 Feb 2026 12:16:12 +0100
Subject: [PATCH 03/11] Add AppWithComposerIcon test project and ComposerIcon
 integration test

Add a test project that uses .icon (Xcode Icon Composer) directories
instead of .xcassets for app icons. The test builds the project for
all platforms and verifies that raw .icon files don't end up in the
app bundle as BundleResources (they should be processed by actool).
---
 .../dotnet/AppWithComposerIcon/AppDelegate.cs |  35 ++++++++++++++++++
 .../MacCatalyst/AppWithComposerIcon.csproj    |   7 ++++
 .../Resources/AppIcon.icon/Assets/back.png    | Bin 0 -> 5705 bytes
 .../Resources/AppIcon.icon/Assets/front.png   | Bin 0 -> 5705 bytes
 .../Resources/AppIcon.icon/icon.json          |  19 ++++++++++
 .../iOS/AppWithComposerIcon.csproj            |   7 ++++
 .../Resources/AppIcon.icon/Assets/back.png    | Bin 0 -> 5705 bytes
 .../Resources/AppIcon.icon/Assets/front.png   | Bin 0 -> 5705 bytes
 .../iOS/Resources/AppIcon.icon/icon.json      |  19 ++++++++++
 .../macOS/AppWithComposerIcon.csproj          |   7 ++++
 .../Resources/AppIcon.icon/Assets/back.png    | Bin 0 -> 5705 bytes
 .../Resources/AppIcon.icon/Assets/front.png   | Bin 0 -> 5705 bytes
 .../macOS/Resources/AppIcon.icon/icon.json    |  19 ++++++++++
 .../dotnet/AppWithComposerIcon/shared.csproj  |  23 ++++++++++++
 .../tvOS/AppWithComposerIcon.csproj           |   7 ++++
 .../Resources/AppIcon.icon/Assets/back.png    | Bin 0 -> 5705 bytes
 .../Resources/AppIcon.icon/Assets/front.png   | Bin 0 -> 5705 bytes
 .../tvOS/Resources/AppIcon.icon/icon.json     |  19 ++++++++++
 tests/dotnet/UnitTests/AppIconTest.cs         |  30 +++++++++++++++
 19 files changed, 192 insertions(+)
 create mode 100644 tests/dotnet/AppWithComposerIcon/AppDelegate.cs
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/Assets/back.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/Assets/front.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/Assets/back.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/Assets/front.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/Assets/back.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/Assets/front.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/shared.csproj
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/Assets/back.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/Assets/front.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json

diff --git a/tests/dotnet/AppWithComposerIcon/AppDelegate.cs b/tests/dotnet/AppWithComposerIcon/AppDelegate.cs
new file mode 100644
index 000000000000..2ec34ad0f408
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/AppDelegate.cs
@@ -0,0 +1,35 @@
+using System;
+using Foundation;
+
+#if !__MACOS__
+using UIKit;
+#endif
+
+#nullable enable
+
+namespace AppWithComposerIcon {
+#if !(__MACCATALYST__ || __MACOS__)
+public class AppDelegate : UIApplicationDelegate {
+public override bool FinishedLaunching (UIApplication app, NSDictionary options)
+{
+return true;
+}
+}
+#endif
+
+public class Program {
+static int Main (string [] args)
+{
+#if __MACCATALYST__ || __MACOS__
+GC.KeepAlive (typeof (NSObject)); // prevent linking away the platform assembly
+
+Console.WriteLine (Environment.GetEnvironmentVariable ("MAGIC_WORD"));
+
+return args.Length;
+#else
+UIApplication.Main (args, null, typeof (AppDelegate));
+return 0;
+#endif
+}
+}
+}
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj
new file mode 100644
index 000000000000..b55a3971d948
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+<PropertyGroup>
+<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-maccatalyst</TargetFramework>
+</PropertyGroup>
+<Import Project="..\shared.csproj" />
+</Project>
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/Assets/back.png b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/Assets/back.png
new file mode 100644
index 0000000000000000000000000000000000000000..00c6bc6118f0ee916acf51845aec89a4b11970e4
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/Assets/front.png b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/Assets/front.png
new file mode 100644
index 0000000000000000000000000000000000000000..6dc4283df45ab2d487ec6129d5855c626543ec8f
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json
new file mode 100644
index 000000000000..2fcee2039b37
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json
@@ -0,0 +1,19 @@
+{
+  "version" : 1,
+  "layers" : [
+    {
+      "filename" : "back.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    },
+    {
+      "filename" : "front.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    }
+  ]
+}
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj
new file mode 100644
index 000000000000..0586c0e98058
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+<PropertyGroup>
+<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-ios</TargetFramework>
+</PropertyGroup>
+<Import Project="..\shared.csproj" />
+</Project>
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/Assets/back.png b/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/Assets/back.png
new file mode 100644
index 0000000000000000000000000000000000000000..00c6bc6118f0ee916acf51845aec89a4b11970e4
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/Assets/front.png b/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/Assets/front.png
new file mode 100644
index 0000000000000000000000000000000000000000..6dc4283df45ab2d487ec6129d5855c626543ec8f
GIT binary patch
literal 5705
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zCwp5)Et5U=182!==m+t?fX;4H(+Oct3$ThZ;ZA^T+`He-x3M3z$kL!<><27LM+xWR
e+^J}Ej&;}h<z(w@|M=i)_|Ai>!)5t8$NPUks2cA8

literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json
new file mode 100644
index 000000000000..2fcee2039b37
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json
@@ -0,0 +1,19 @@
+{
+  "version" : 1,
+  "layers" : [
+    {
+      "filename" : "back.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    },
+    {
+      "filename" : "front.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    }
+  ]
+}
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj
new file mode 100644
index 000000000000..912322842db6
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+<PropertyGroup>
+<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-macos</TargetFramework>
+</PropertyGroup>
+<Import Project="..\shared.csproj" />
+</Project>
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/Assets/back.png b/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/Assets/back.png
new file mode 100644
index 0000000000000000000000000000000000000000..00c6bc6118f0ee916acf51845aec89a4b11970e4
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/Assets/front.png b/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/Assets/front.png
new file mode 100644
index 0000000000000000000000000000000000000000..6dc4283df45ab2d487ec6129d5855c626543ec8f
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json
new file mode 100644
index 000000000000..2fcee2039b37
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json
@@ -0,0 +1,19 @@
+{
+  "version" : 1,
+  "layers" : [
+    {
+      "filename" : "back.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    },
+    {
+      "filename" : "front.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    }
+  ]
+}
diff --git a/tests/dotnet/AppWithComposerIcon/shared.csproj b/tests/dotnet/AppWithComposerIcon/shared.csproj
new file mode 100644
index 000000000000..72954b94ed0b
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/shared.csproj
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project>
+<PropertyGroup>
+<OutputType>Exe</OutputType>
+
+<ApplicationTitle>AppWithComposerIcon</ApplicationTitle>
+<ApplicationId>com.xamarin.appwithcomposericon</ApplicationId>
+
+<UseInterpreter>true</UseInterpreter> <!-- this is only to speed up the build -->
+</PropertyGroup>
+
+<Import Project="../../common/shared-dotnet.csproj" />
+
+<PropertyGroup>
+<AppIcon>AppIcon</AppIcon>
+</PropertyGroup>
+
+<ItemGroup>
+<Compile Include="../*.cs" />
+
+<!-- ImageAssets: included by default (each platform has a Resources/AppIcon.icon directory) -->
+</ItemGroup>
+</Project>
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj
new file mode 100644
index 000000000000..8319610bec72
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+<PropertyGroup>
+<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-tvos</TargetFramework>
+</PropertyGroup>
+<Import Project="..\shared.csproj" />
+</Project>
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/Assets/back.png b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/Assets/back.png
new file mode 100644
index 0000000000000000000000000000000000000000..00c6bc6118f0ee916acf51845aec89a4b11970e4
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/Assets/front.png b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/Assets/front.png
new file mode 100644
index 0000000000000000000000000000000000000000..6dc4283df45ab2d487ec6129d5855c626543ec8f
GIT binary patch
literal 5705
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literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json
new file mode 100644
index 000000000000..2fcee2039b37
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json
@@ -0,0 +1,19 @@
+{
+  "version" : 1,
+  "layers" : [
+    {
+      "filename" : "back.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    },
+    {
+      "filename" : "front.png",
+      "size" : {
+        "width" : 1024,
+        "height" : 1024
+      }
+    }
+  ]
+}
diff --git a/tests/dotnet/UnitTests/AppIconTest.cs b/tests/dotnet/UnitTests/AppIconTest.cs
index e8bea97b7c7e..49c00113ff3f 100644
--- a/tests/dotnet/UnitTests/AppIconTest.cs
+++ b/tests/dotnet/UnitTests/AppIconTest.cs
@@ -672,5 +672,35 @@ void TestXCAssetsImpl (ApplePlatform platform, string runtimeIdentifiers, Dictio
 				throw;
 			}
 		}
+
+		[TestCase (ApplePlatform.iOS, "iossimulator-x64")]
+		[TestCase (ApplePlatform.TVOS, "tvossimulator-x64")]
+		[TestCase (ApplePlatform.MacCatalyst, "maccatalyst-x64")]
+		[TestCase (ApplePlatform.MacOSX, "osx-x64")]
+		public void ComposerIcon (ApplePlatform platform, string runtimeIdentifiers)
+		{
+			Configuration.AssertRuntimeIdentifiersAvailable (platform, runtimeIdentifiers);
+			Configuration.IgnoreIfIgnoredPlatform (platform);
+
+			var project = "AppWithComposerIcon";
+			var projectPath = GetProjectPath (project, runtimeIdentifiers: runtimeIdentifiers, platform: platform, out var appPath);
+			Clean (projectPath);
+
+			var properties = GetDefaultProperties (runtimeIdentifiers);
+			DotNet.AssertBuild (projectPath, properties);
+
+			var resourcesDirectory = GetResourcesDirectory (platform, appPath);
+
+			// Verify that the raw .icon files are not in the app bundle as BundleResources
+			var iconJsonInBundle = Path.Combine (resourcesDirectory, "AppIcon.icon", "icon.json");
+			Assert.That (iconJsonInBundle, Does.Not.Exist, "icon.json should not be in the app bundle as a raw BundleResource");
+
+			var frontPngInBundle = Path.Combine (resourcesDirectory, "AppIcon.icon", "Assets", "front.png");
+			Assert.That (frontPngInBundle, Does.Not.Exist, "front.png should not be in the app bundle as a raw BundleResource");
+
+			var backPngInBundle = Path.Combine (resourcesDirectory, "AppIcon.icon", "Assets", "back.png");
+			Assert.That (backPngInBundle, Does.Not.Exist, "back.png should not be in the app bundle as a raw BundleResource");
+		}
 	}
 }
+

From 3dad65e5cfff4ff6cc005b2f64475a82231e0029 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Thu, 12 Feb 2026 12:51:33 +0100
Subject: [PATCH 04/11] Add .xcassets fallback and graceful skip for icon
 export failure

Add a basic .xcassets directory alongside .icon in the test project
so the build can succeed even when actool's icon export subprocess
fails (status 255 on some systems). The test gracefully skips with
Assert.Ignore when icon export is not supported.
---
 .../Resources/Images.xcassets/Contents.json        |   6 ++++++
 .../Images.xcassets/Image.imageset/Contents.json   |  12 ++++++++++++
 .../Images.xcassets/Image.imageset/Icon16.png      | Bin 0 -> 83 bytes
 .../iOS/Resources/Images.xcassets/Contents.json    |   6 ++++++
 .../Images.xcassets/Image.imageset/Contents.json   |  12 ++++++++++++
 .../Images.xcassets/Image.imageset/Icon16.png      | Bin 0 -> 83 bytes
 .../macOS/Resources/Images.xcassets/Contents.json  |   6 ++++++
 .../Images.xcassets/Image.imageset/Contents.json   |  12 ++++++++++++
 .../Images.xcassets/Image.imageset/Icon16.png      | Bin 0 -> 83 bytes
 .../tvOS/Resources/Images.xcassets/Contents.json   |   6 ++++++
 .../Images.xcassets/Image.imageset/Contents.json   |  12 ++++++++++++
 .../Images.xcassets/Image.imageset/Icon16.png      | Bin 0 -> 83 bytes
 tests/dotnet/UnitTests/AppIconTest.cs              |  11 ++++++++++-
 13 files changed, 82 insertions(+), 1 deletion(-)
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Icon16.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Icon16.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Icon16.png
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Icon16.png

diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json
new file mode 100644
index 000000000000..73c00596a7fc
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json
new file mode 100644
index 000000000000..103bde20f61c
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "Icon16.png",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Icon16.png
new file mode 100644
index 0000000000000000000000000000000000000000..a07ad0dab3fd27e91d90db830d434828fa8066af
GIT binary patch
literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json
new file mode 100644
index 000000000000..73c00596a7fc
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json
new file mode 100644
index 000000000000..103bde20f61c
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "Icon16.png",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Icon16.png
new file mode 100644
index 0000000000000000000000000000000000000000..a07ad0dab3fd27e91d90db830d434828fa8066af
GIT binary patch
literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json
new file mode 100644
index 000000000000..73c00596a7fc
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json
new file mode 100644
index 000000000000..103bde20f61c
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "Icon16.png",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Icon16.png
new file mode 100644
index 0000000000000000000000000000000000000000..a07ad0dab3fd27e91d90db830d434828fa8066af
GIT binary patch
literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

literal 0
HcmV?d00001

diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json
new file mode 100644
index 000000000000..73c00596a7fc
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json
new file mode 100644
index 000000000000..103bde20f61c
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "Icon16.png",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Icon16.png
new file mode 100644
index 0000000000000000000000000000000000000000..a07ad0dab3fd27e91d90db830d434828fa8066af
GIT binary patch
literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

literal 0
HcmV?d00001

diff --git a/tests/dotnet/UnitTests/AppIconTest.cs b/tests/dotnet/UnitTests/AppIconTest.cs
index 49c00113ff3f..5b7479c83279 100644
--- a/tests/dotnet/UnitTests/AppIconTest.cs
+++ b/tests/dotnet/UnitTests/AppIconTest.cs
@@ -687,7 +687,16 @@ public void ComposerIcon (ApplePlatform platform, string runtimeIdentifiers)
 			Clean (projectPath);
 
 			var properties = GetDefaultProperties (runtimeIdentifiers);
-			DotNet.AssertBuild (projectPath, properties);
+			var rv = DotNet.Execute ("build", projectPath, properties, assert_success: false);
+			if (rv.ExitCode != 0) {
+				var errors = BinLog.GetBuildLogErrors (rv.BinLogPath).ToArray ();
+				// If the only error is that the partial-info.plist wasn't generated,
+				// it's because the icon export subprocess failed. This can happen
+				// on some systems where the icon composer format isn't fully supported.
+				if (errors.Length == 1 && errors [0].Message?.Contains ("Partial Info.plist file was not generated") == true)
+					Assert.Ignore ("Icon Composer export is not supported on this system (actool icon export failed).");
+				Assert.Fail ($"Build failed with {errors.Length} error(s):\n{string.Join ("\n", errors.Select (v => v.Message))}");
+			}
 
 			var resourcesDirectory = GetResourcesDirectory (platform, appPath);
 

From c58f712201abc25363e8615173cce063e6c2bc20 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Thu, 12 Feb 2026 12:59:43 +0100
Subject: [PATCH 05/11] Fix indentation in csproj files to use tabs

---
 .../MacCatalyst/AppWithComposerIcon.csproj    |  8 +++---
 .../iOS/AppWithComposerIcon.csproj            |  8 +++---
 .../macOS/AppWithComposerIcon.csproj          |  8 +++---
 .../dotnet/AppWithComposerIcon/shared.csproj  | 28 +++++++++----------
 .../tvOS/AppWithComposerIcon.csproj           |  8 +++---
 5 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj
index b55a3971d948..6b0e2c773180 100644
--- a/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/AppWithComposerIcon.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
-<PropertyGroup>
-<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-maccatalyst</TargetFramework>
-</PropertyGroup>
-<Import Project="..\shared.csproj" />
+	<PropertyGroup>
+		<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-maccatalyst</TargetFramework>
+	</PropertyGroup>
+	<Import Project="..\shared.csproj" />
 </Project>
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj
index 0586c0e98058..86d408734aa8 100644
--- a/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj
+++ b/tests/dotnet/AppWithComposerIcon/iOS/AppWithComposerIcon.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
-<PropertyGroup>
-<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-ios</TargetFramework>
-</PropertyGroup>
-<Import Project="..\shared.csproj" />
+	<PropertyGroup>
+		<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-ios</TargetFramework>
+	</PropertyGroup>
+	<Import Project="..\shared.csproj" />
 </Project>
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj
index 912322842db6..a77287b9ba00 100644
--- a/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj
+++ b/tests/dotnet/AppWithComposerIcon/macOS/AppWithComposerIcon.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
-<PropertyGroup>
-<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-macos</TargetFramework>
-</PropertyGroup>
-<Import Project="..\shared.csproj" />
+	<PropertyGroup>
+		<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-macos</TargetFramework>
+	</PropertyGroup>
+	<Import Project="..\shared.csproj" />
 </Project>
diff --git a/tests/dotnet/AppWithComposerIcon/shared.csproj b/tests/dotnet/AppWithComposerIcon/shared.csproj
index 72954b94ed0b..702960b9dd8e 100644
--- a/tests/dotnet/AppWithComposerIcon/shared.csproj
+++ b/tests/dotnet/AppWithComposerIcon/shared.csproj
@@ -1,23 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
-<PropertyGroup>
-<OutputType>Exe</OutputType>
+	<PropertyGroup>
+		<OutputType>Exe</OutputType>
 
-<ApplicationTitle>AppWithComposerIcon</ApplicationTitle>
-<ApplicationId>com.xamarin.appwithcomposericon</ApplicationId>
+		<ApplicationTitle>AppWithComposerIcon</ApplicationTitle>
+		<ApplicationId>com.xamarin.appwithcomposericon</ApplicationId>
 
-<UseInterpreter>true</UseInterpreter> <!-- this is only to speed up the build -->
-</PropertyGroup>
+		<UseInterpreter>true</UseInterpreter> <!-- this is only to speed up the build -->
+	</PropertyGroup>
 
-<Import Project="../../common/shared-dotnet.csproj" />
+	<Import Project="../../common/shared-dotnet.csproj" />
 
-<PropertyGroup>
-<AppIcon>AppIcon</AppIcon>
-</PropertyGroup>
+	<PropertyGroup>
+		<AppIcon>AppIcon</AppIcon>
+	</PropertyGroup>
 
-<ItemGroup>
-<Compile Include="../*.cs" />
+	<ItemGroup>
+		<Compile Include="../*.cs" />
 
-<!-- ImageAssets: included by default (each platform has a Resources/AppIcon.icon directory) -->
-</ItemGroup>
+		<!-- ImageAssets: included by default (each platform has a Resources/AppIcon.icon directory) -->
+	</ItemGroup>
 </Project>
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj b/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj
index 8319610bec72..bd487ddcd88d 100644
--- a/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/AppWithComposerIcon.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
-<PropertyGroup>
-<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-tvos</TargetFramework>
-</PropertyGroup>
-<Import Project="..\shared.csproj" />
+	<PropertyGroup>
+		<TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-tvos</TargetFramework>
+	</PropertyGroup>
+	<Import Project="..\shared.csproj" />
 </Project>

From 24c7f45d1b56ea16eec06c7bdf257e531ec0736d Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Thu, 12 Feb 2026 13:00:44 +0100
Subject: [PATCH 06/11] Add Makefile logic to AppWithComposerIcon test project

---
 tests/dotnet/AppWithComposerIcon/MacCatalyst/Makefile | 1 +
 tests/dotnet/AppWithComposerIcon/iOS/Makefile         | 1 +
 tests/dotnet/AppWithComposerIcon/macOS/Makefile       | 1 +
 tests/dotnet/AppWithComposerIcon/shared.mk            | 3 +++
 tests/dotnet/AppWithComposerIcon/tvOS/Makefile        | 1 +
 5 files changed, 7 insertions(+)
 create mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Makefile
 create mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Makefile
 create mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Makefile
 create mode 100644 tests/dotnet/AppWithComposerIcon/shared.mk
 create mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Makefile

diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Makefile b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Makefile
new file mode 100644
index 000000000000..110d078f4577
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Makefile
@@ -0,0 +1 @@
+include ../shared.mk
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Makefile b/tests/dotnet/AppWithComposerIcon/iOS/Makefile
new file mode 100644
index 000000000000..110d078f4577
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/iOS/Makefile
@@ -0,0 +1 @@
+include ../shared.mk
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Makefile b/tests/dotnet/AppWithComposerIcon/macOS/Makefile
new file mode 100644
index 000000000000..110d078f4577
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/macOS/Makefile
@@ -0,0 +1 @@
+include ../shared.mk
diff --git a/tests/dotnet/AppWithComposerIcon/shared.mk b/tests/dotnet/AppWithComposerIcon/shared.mk
new file mode 100644
index 000000000000..de0244100278
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/shared.mk
@@ -0,0 +1,3 @@
+TOP=../../../..
+TESTNAME=AppWithComposerIcon
+include $(TOP)/tests/common/shared-dotnet.mk
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Makefile b/tests/dotnet/AppWithComposerIcon/tvOS/Makefile
new file mode 100644
index 000000000000..110d078f4577
--- /dev/null
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/Makefile
@@ -0,0 +1 @@
+include ../shared.mk

From 478d2c3da55eebd1480cd0be4d9702e7318f2b75 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Thu, 12 Feb 2026 13:50:40 +0100
Subject: [PATCH 07/11] Fix icon.json format and remove xcassets fallback

The icon.json format used 'version'+'layers'+'filename' but the correct
Icon Composer format uses 'groups' containing 'layers' with 'image-name'.
The old format caused actool's icon export subprocess to fail with
status 255.

With the correct format, actool successfully compiles .icon files into
app icons on all platforms.

Also removed the Images.xcassets fallback from the test project (no
longer needed) and updated the integration test to assert success
instead of skipping.
---
 .../Resources/AppIcon.icon/icon.json          |  25 +++++------
 .../Resources/Images.xcassets/Contents.json   |   6 ---
 .../Image.imageset/Contents.json              |  12 -----
 .../Images.xcassets/Image.imageset/Icon16.png | Bin 83 -> 0 bytes
 .../iOS/Resources/AppIcon.icon/icon.json      |  25 +++++------
 .../Resources/Images.xcassets/Contents.json   |   6 ---
 .../Image.imageset/Contents.json              |  12 -----
 .../Images.xcassets/Image.imageset/Icon16.png | Bin 83 -> 0 bytes
 .../macOS/Resources/AppIcon.icon/icon.json    |  25 +++++------
 .../Resources/Images.xcassets/Contents.json   |   6 ---
 .../Image.imageset/Contents.json              |  12 -----
 .../Images.xcassets/Image.imageset/Icon16.png | Bin 83 -> 0 bytes
 .../tvOS/Resources/AppIcon.icon/icon.json     |  25 +++++------
 .../Resources/Images.xcassets/Contents.json   |   6 ---
 .../Image.imageset/Contents.json              |  12 -----
 .../Images.xcassets/Image.imageset/Icon16.png | Bin 83 -> 0 bytes
 tests/dotnet/UnitTests/AppIconTest.cs         |  11 +----
 .../TaskTests/ACToolTaskTest.cs               |  42 +++++++++---------
 18 files changed, 66 insertions(+), 159 deletions(-)
 delete mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Icon16.png
 delete mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Icon16.png
 delete mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Icon16.png
 delete mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json
 delete mode 100644 tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Icon16.png

diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json
index 2fcee2039b37..9cb9eee03bd1 100644
--- a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json
+++ b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/AppIcon.icon/icon.json
@@ -1,19 +1,16 @@
 {
-  "version" : 1,
-  "layers" : [
+  "groups" : [
     {
-      "filename" : "back.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
-    },
-    {
-      "filename" : "front.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
+      "layers" : [
+        {
+          "image-name" : "back.png",
+          "name" : "back"
+        },
+        {
+          "image-name" : "front.png",
+          "name" : "front"
+        }
+      ]
     }
   ]
 }
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json
deleted file mode 100644
index 73c00596a7fc..000000000000
--- a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Contents.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json
deleted file mode 100644
index 103bde20f61c..000000000000
--- a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Contents.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "Icon16.png",
-      "idiom" : "universal"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/MacCatalyst/Resources/Images.xcassets/Image.imageset/Icon16.png
deleted file mode 100644
index a07ad0dab3fd27e91d90db830d434828fa8066af..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json
index 2fcee2039b37..9cb9eee03bd1 100644
--- a/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json
+++ b/tests/dotnet/AppWithComposerIcon/iOS/Resources/AppIcon.icon/icon.json
@@ -1,19 +1,16 @@
 {
-  "version" : 1,
-  "layers" : [
+  "groups" : [
     {
-      "filename" : "back.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
-    },
-    {
-      "filename" : "front.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
+      "layers" : [
+        {
+          "image-name" : "back.png",
+          "name" : "back"
+        },
+        {
+          "image-name" : "front.png",
+          "name" : "front"
+        }
+      ]
     }
   ]
 }
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json
deleted file mode 100644
index 73c00596a7fc..000000000000
--- a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Contents.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json
deleted file mode 100644
index 103bde20f61c..000000000000
--- a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Contents.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "Icon16.png",
-      "idiom" : "universal"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/iOS/Resources/Images.xcassets/Image.imageset/Icon16.png
deleted file mode 100644
index a07ad0dab3fd27e91d90db830d434828fa8066af..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json
index 2fcee2039b37..9cb9eee03bd1 100644
--- a/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json
+++ b/tests/dotnet/AppWithComposerIcon/macOS/Resources/AppIcon.icon/icon.json
@@ -1,19 +1,16 @@
 {
-  "version" : 1,
-  "layers" : [
+  "groups" : [
     {
-      "filename" : "back.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
-    },
-    {
-      "filename" : "front.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
+      "layers" : [
+        {
+          "image-name" : "back.png",
+          "name" : "back"
+        },
+        {
+          "image-name" : "front.png",
+          "name" : "front"
+        }
+      ]
     }
   ]
 }
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json
deleted file mode 100644
index 73c00596a7fc..000000000000
--- a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Contents.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json
deleted file mode 100644
index 103bde20f61c..000000000000
--- a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Contents.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "Icon16.png",
-      "idiom" : "universal"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/macOS/Resources/Images.xcassets/Image.imageset/Icon16.png
deleted file mode 100644
index a07ad0dab3fd27e91d90db830d434828fa8066af..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json
index 2fcee2039b37..9cb9eee03bd1 100644
--- a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json
+++ b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/AppIcon.icon/icon.json
@@ -1,19 +1,16 @@
 {
-  "version" : 1,
-  "layers" : [
+  "groups" : [
     {
-      "filename" : "back.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
-    },
-    {
-      "filename" : "front.png",
-      "size" : {
-        "width" : 1024,
-        "height" : 1024
-      }
+      "layers" : [
+        {
+          "image-name" : "back.png",
+          "name" : "back"
+        },
+        {
+          "image-name" : "front.png",
+          "name" : "front"
+        }
+      ]
     }
   ]
 }
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json
deleted file mode 100644
index 73c00596a7fc..000000000000
--- a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Contents.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json
deleted file mode 100644
index 103bde20f61c..000000000000
--- a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Contents.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "Icon16.png",
-      "idiom" : "universal"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Icon16.png b/tests/dotnet/AppWithComposerIcon/tvOS/Resources/Images.xcassets/Image.imageset/Icon16.png
deleted file mode 100644
index a07ad0dab3fd27e91d90db830d434828fa8066af..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 83
zcmeAS@N?(olHy`uVBq!ia0vp^0wB!61|;P_|4#%`Ql2i3Ar-fhJ!Y0YvR9pvc%>nb
e*^O6152z$A^PoJRjO1ycDh5wiKbLh*2~7aq;uG@#

diff --git a/tests/dotnet/UnitTests/AppIconTest.cs b/tests/dotnet/UnitTests/AppIconTest.cs
index 5b7479c83279..7c84445556ae 100644
--- a/tests/dotnet/UnitTests/AppIconTest.cs
+++ b/tests/dotnet/UnitTests/AppIconTest.cs
@@ -687,16 +687,7 @@ public void ComposerIcon (ApplePlatform platform, string runtimeIdentifiers)
 			Clean (projectPath);
 
 			var properties = GetDefaultProperties (runtimeIdentifiers);
-			var rv = DotNet.Execute ("build", projectPath, properties, assert_success: false);
-			if (rv.ExitCode != 0) {
-				var errors = BinLog.GetBuildLogErrors (rv.BinLogPath).ToArray ();
-				// If the only error is that the partial-info.plist wasn't generated,
-				// it's because the icon export subprocess failed. This can happen
-				// on some systems where the icon composer format isn't fully supported.
-				if (errors.Length == 1 && errors [0].Message?.Contains ("Partial Info.plist file was not generated") == true)
-					Assert.Ignore ("Icon Composer export is not supported on this system (actool icon export failed).");
-				Assert.Fail ($"Build failed with {errors.Length} error(s):\n{string.Join ("\n", errors.Select (v => v.Message))}");
-			}
+			DotNet.Execute ("build", projectPath, properties);
 
 			var resourcesDirectory = GetResourcesDirectory (platform, appPath);
 
diff --git a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
index b18b5b438fc0..c816c559450d 100644
--- a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
+++ b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
@@ -648,13 +648,13 @@ public void IconFileSupport (ApplePlatform platform)
 			var assetsPath = Path.Combine (iconFolderPath, "Assets");
 			Directory.CreateDirectory (assetsPath);
 
-			// Create a dummy icon.json file (simplified structure for testing)
+			// Create a placeholder icon.json file (simplified structure for testing)
 			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
-			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+			File.WriteAllText (iconJsonPath, @"{""groups"":[{""layers"":[{""image-name"":""icon_512x512.png"",""name"":""icon""}]}]}");
 
-			// Create a dummy image file in the Assets folder
+			// Create a placeholder image file in the Assets folder
 			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
-			File.WriteAllText (imagePath, "dummy image");
+			File.WriteAllText (imagePath, "placeholder image");
 
 			var actool = CreateACToolTask (
 				platform,
@@ -665,10 +665,8 @@ public void IconFileSupport (ApplePlatform platform)
 			);
 			actool.AppIcon = "AppIcon";
 
-			// The task should recognize AppIcon as a valid icon
-			// Note: This will fail at actool execution since we don't have a real .icon structure,
-			// but we're testing that the icon is recognized in the validation phase
-			ExecuteTask (actool, expectedErrorCount: 1); // Expected to fail at actool execution
+			// actool may fail on the placeholder .icon content, but the validation phase should pass
+			actool.Execute ();
 
 			// Verify that no error was logged about the icon not being found
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
@@ -690,10 +688,10 @@ public void IconFileSupportWithIncludeAllAppIcons (ApplePlatform platform)
 			Directory.CreateDirectory (assetsPath);
 
 			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
-			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+			File.WriteAllText (iconJsonPath, @"{""groups"":[{""layers"":[{""image-name"":""icon_512x512.png"",""name"":""icon""}]}]}");
 
 			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
-			File.WriteAllText (imagePath, "dummy image");
+			File.WriteAllText (imagePath, "placeholder image");
 
 			var actool = CreateACToolTask (
 				platform,
@@ -705,7 +703,8 @@ public void IconFileSupportWithIncludeAllAppIcons (ApplePlatform platform)
 			actool.AppIcon = "AppIcon";
 			actool.IncludeAllAppIcons = true;
 
-			ExecuteTask (actool, expectedErrorCount: 1);
+			// actool may fail on the placeholder .icon content, but the validation phase should pass
+			actool.Execute ();
 
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
 			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
@@ -726,10 +725,10 @@ public void IconFileSupportAsAlternateIcon (ApplePlatform platform)
 			Directory.CreateDirectory (assetsPath);
 
 			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
-			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+			File.WriteAllText (iconJsonPath, @"{""groups"":[{""layers"":[{""image-name"":""icon_512x512.png"",""name"":""icon""}]}]}");
 
 			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
-			File.WriteAllText (imagePath, "dummy image");
+			File.WriteAllText (imagePath, "placeholder image");
 
 			// Also need a primary icon for the alternate icon test to make sense
 			var primaryIconPath = Path.Combine (projectDir, "Resources", "AppIcon.icon");
@@ -737,10 +736,10 @@ public void IconFileSupportAsAlternateIcon (ApplePlatform platform)
 			Directory.CreateDirectory (primaryAssetsPath);
 
 			var primaryIconJsonPath = Path.Combine (primaryIconPath, "icon.json");
-			File.WriteAllText (primaryIconJsonPath, @"{""version"":1}");
+			File.WriteAllText (primaryIconJsonPath, @"{""groups"":[{""layers"":[{""image-name"":""icon_512x512.png"",""name"":""icon""}]}]}");
 
 			var primaryImagePath = Path.Combine (primaryAssetsPath, "icon_512x512.png");
-			File.WriteAllText (primaryImagePath, "dummy image");
+			File.WriteAllText (primaryImagePath, "placeholder image");
 
 			var actool = CreateACToolTask (
 				platform,
@@ -754,7 +753,8 @@ public void IconFileSupportAsAlternateIcon (ApplePlatform platform)
 			actool.AppIcon = "AppIcon";
 			actool.AlternateAppIcons = new ITaskItem [] { new TaskItem ("AlternateIcon") };
 
-			ExecuteTask (actool, expectedErrorCount: 1);
+			// actool may fail on the placeholder .icon content, but the validation phase should pass
+			actool.Execute ();
 
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
 			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AlternateAppIcon")),
@@ -777,10 +777,10 @@ public void InexistentIconFile (ApplePlatform platform)
 			Directory.CreateDirectory (assetsPath);
 
 			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
-			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+			File.WriteAllText (iconJsonPath, @"{""groups"":[{""layers"":[{""image-name"":""icon_512x512.png"",""name"":""icon""}]}]}");
 
 			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
-			File.WriteAllText (imagePath, "dummy image");
+			File.WriteAllText (imagePath, "placeholder image");
 
 			var actool = CreateACToolTask (
 				platform,
@@ -816,10 +816,10 @@ public void MixedXCAssetsAndIconFile (ApplePlatform platform)
 			Directory.CreateDirectory (assetsPath);
 
 			var iconJsonPath = Path.Combine (iconFolderPath, "icon.json");
-			File.WriteAllText (iconJsonPath, @"{""version"":1}");
+			File.WriteAllText (iconJsonPath, @"{""groups"":[{""layers"":[{""image-name"":""icon_512x512.png"",""name"":""icon""}]}]}");
 
 			var imagePath = Path.Combine (assetsPath, "icon_512x512.png");
-			File.WriteAllText (imagePath, "dummy image");
+			File.WriteAllText (imagePath, "placeholder image");
 
 			imageAssets.Add (iconJsonPath + "|Resources/ComposerIcon.icon/icon.json");
 			imageAssets.Add (imagePath + "|Resources/ComposerIcon.icon/Assets/icon_512x512.png");
@@ -832,7 +832,7 @@ public void MixedXCAssetsAndIconFile (ApplePlatform platform)
 			);
 			actool.AppIcon = "AppIcons";
 
-			// actool may fail on the dummy .icon content, but the validation phase should pass
+			// actool may fail on the placeholder .icon content, but the validation phase should pass
 			actool.Execute ();
 
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();

From 40f00db5ee03047a1dbb6d97d9cf0a0f4c0f8a7a Mon Sep 17 00:00:00 2001
From: GitHub Actions Autoformatter <github-actions-autoformatter@xamarin.com>
Date: Tue, 17 Feb 2026 10:47:41 +0000
Subject: [PATCH 08/11] Auto-format source code

---
 .../dotnet/AppWithComposerIcon/AppDelegate.cs | 26 +++++++++----------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/tests/dotnet/AppWithComposerIcon/AppDelegate.cs b/tests/dotnet/AppWithComposerIcon/AppDelegate.cs
index 2ec34ad0f408..128f4f61dcb4 100644
--- a/tests/dotnet/AppWithComposerIcon/AppDelegate.cs
+++ b/tests/dotnet/AppWithComposerIcon/AppDelegate.cs
@@ -9,17 +9,17 @@
 
 namespace AppWithComposerIcon {
 #if !(__MACCATALYST__ || __MACOS__)
-public class AppDelegate : UIApplicationDelegate {
-public override bool FinishedLaunching (UIApplication app, NSDictionary options)
-{
-return true;
-}
-}
+	public class AppDelegate : UIApplicationDelegate {
+		public override bool FinishedLaunching (UIApplication app, NSDictionary options)
+		{
+			return true;
+		}
+	}
 #endif
 
-public class Program {
-static int Main (string [] args)
-{
+	public class Program {
+		static int Main (string [] args)
+		{
 #if __MACCATALYST__ || __MACOS__
 GC.KeepAlive (typeof (NSObject)); // prevent linking away the platform assembly
 
@@ -27,9 +27,9 @@ static int Main (string [] args)
 
 return args.Length;
 #else
-UIApplication.Main (args, null, typeof (AppDelegate));
-return 0;
+			UIApplication.Main (args, null, typeof (AppDelegate));
+			return 0;
 #endif
-}
-}
+		}
+	}
 }

From c2cd21da2d0e3a9846f725973cc5b19367bbabec Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Fri, 20 Mar 2026 11:32:23 +0100
Subject: [PATCH 09/11] Address PR review comments for Composer Icons tests

- ACToolTaskTest: Replace ad-hoc error assertions with shared
  AssertNoIconValidationErrors helper that checks all icon validation
  error patterns (E7130/E7127/E7128/E7129), not just one specific message.
- AppIconTest: Add Assets.car existence assertion to ComposerIcon test,
  matching the pattern used by TestXCAssetsImpl.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 tests/dotnet/UnitTests/AppIconTest.cs         |  4 +++
 .../TaskTests/ACToolTaskTest.cs               | 34 +++++++++++--------
 2 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/tests/dotnet/UnitTests/AppIconTest.cs b/tests/dotnet/UnitTests/AppIconTest.cs
index 7c84445556ae..0bdafa8ed9a5 100644
--- a/tests/dotnet/UnitTests/AppIconTest.cs
+++ b/tests/dotnet/UnitTests/AppIconTest.cs
@@ -700,6 +700,10 @@ public void ComposerIcon (ApplePlatform platform, string runtimeIdentifiers)
 
 			var backPngInBundle = Path.Combine (resourcesDirectory, "AppIcon.icon", "Assets", "back.png");
 			Assert.That (backPngInBundle, Does.Not.Exist, "back.png should not be in the app bundle as a raw BundleResource");
+
+			// Verify that the compiled asset catalog exists in the app bundle
+			var assetsCar = Path.Combine (resourcesDirectory, "Assets.car");
+			Assert.That (assetsCar, Does.Exist, "Assets.car");
 		}
 	}
 }
diff --git a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
index c816c559450d..1da179b58333 100644
--- a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
+++ b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
@@ -668,10 +668,8 @@ public void IconFileSupport (ApplePlatform platform)
 			// actool may fail on the placeholder .icon content, but the validation phase should pass
 			actool.Execute ();
 
-			// Verify that no error was logged about the icon not being found
-			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
-			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
-				"Should not report that AppIcon is not found among image resources");
+			// Verify that no icon validation errors were logged
+			AssertNoIconValidationErrors ();
 		}
 
 		[Test]
@@ -706,9 +704,8 @@ public void IconFileSupportWithIncludeAllAppIcons (ApplePlatform platform)
 			// actool may fail on the placeholder .icon content, but the validation phase should pass
 			actool.Execute ();
 
-			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
-			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
-				"Should not report that AppIcon is not found among image resources");
+			// Verify that no icon validation errors were logged
+			AssertNoIconValidationErrors ();
 		}
 
 		[Test]
@@ -756,11 +753,8 @@ public void IconFileSupportAsAlternateIcon (ApplePlatform platform)
 			// actool may fail on the placeholder .icon content, but the validation phase should pass
 			actool.Execute ();
 
-			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
-			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AlternateAppIcon")),
-				"Should not report that AlternateIcon is not found among image resources");
-			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
-				"Should not report that AppIcon is not found among image resources");
+			// Verify that no icon validation errors were logged
+			AssertNoIconValidationErrors ();
 		}
 
 		[Test]
@@ -835,9 +829,21 @@ public void MixedXCAssetsAndIconFile (ApplePlatform platform)
 			// actool may fail on the placeholder .icon content, but the validation phase should pass
 			actool.Execute ();
 
+			// Verify that no icon validation errors were logged
+			AssertNoIconValidationErrors ();
+		}
+
+		void AssertNoIconValidationErrors ()
+		{
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
-			Assert.IsFalse (errorMessages.Any (m => m.Contains ("Can't find the AppIcon")),
-				"Should not report that AppIcon is not found when mixing .xcassets and .icon");
+			Assert.That (errorMessages, Has.None.Contain ("Can't find the AppIcon"),
+				"Should not report that AppIcon is not found among image resources");
+			Assert.That (errorMessages, Has.None.Contain ("Can't find the AlternateAppIcon"),
+				"Should not report that AlternateAppIcon is not found among image resources");
+			Assert.That (errorMessages, Has.None.Contain ("is specified as both 'AppIcon' and 'AlternateAppIcon'"),
+				"Should not report icon conflict between AppIcon and AlternateAppIcon");
+			Assert.That (errorMessages, Has.None.Contain ("Can't specify both 'XSAppIconAssets'"),
+				"Should not report XSAppIconAssets conflict");
 		}
 	}
 }

From e085c4c7ea8401128806d97dba18ec341a5761cb Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Fri, 17 Apr 2026 19:42:20 +0200
Subject: [PATCH 10/11] Fix build.

---
 .../Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
index 2fc4aac5368b..bc2dac88aed5 100644
--- a/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
+++ b/tests/msbuild/Xamarin.MacDev.Tasks.Tests/TaskTests/ACToolTaskTest.cs
@@ -788,7 +788,7 @@ public void InexistentIconFile (ApplePlatform platform)
 			ExecuteTask (actool, 1);
 
 			var errorMessages = Engine.Logger.ErrorEvents.Select (e => e.Message).ToList ();
-			Assert.IsTrue (errorMessages.Any (m => m.Contains ("Can't find the AppIcon 'InexistentIcon'")),
+			Assert.IsTrue (errorMessages.Any (m => m?.Contains ("Can't find the AppIcon 'InexistentIcon'") == true),
 				"Should report that InexistentIcon is not found among image resources");
 		}
 

From ee4b7a1a4d87ddffdb15120a68e36affb08b4655 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Fri, 24 Apr 2026 10:49:20 +0200
Subject: [PATCH 11/11] [tests] Update expected sizes.

---
 .../expected/MacCatalyst-MonoVM-interpreter-size.txt        | 6 +++---
 tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-size.txt | 6 +++---
 .../UnitTests/expected/MacCatalyst-NativeAOT-size.txt       | 4 ++--
 .../UnitTests/expected/MacOSX-CoreCLR-Interpreter-size.txt  | 6 +++---
 tests/dotnet/UnitTests/expected/MacOSX-NativeAOT-size.txt   | 4 ++--
 .../UnitTests/expected/TVOS-MonoVM-interpreter-size.txt     | 4 ++--
 tests/dotnet/UnitTests/expected/TVOS-MonoVM-size.txt        | 4 ++--
 tests/dotnet/UnitTests/expected/TVOS-NativeAOT-size.txt     | 4 ++--
 .../UnitTests/expected/iOS-MonoVM-interpreter-size.txt      | 6 +++---
 tests/dotnet/UnitTests/expected/iOS-MonoVM-size.txt         | 6 +++---
 tests/dotnet/UnitTests/expected/iOS-NativeAOT-size.txt      | 6 +++---
 11 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-interpreter-size.txt b/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-interpreter-size.txt
index 72b7ccf8cf4b..fa3fa23d666f 100644
--- a/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-interpreter-size.txt
+++ b/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-interpreter-size.txt
@@ -1,8 +1,8 @@
-AppBundleSize: 5,787,809 bytes (5,652.2 KB = 5.5 MB)
+AppBundleSize: 5,789,992 bytes (5,654.3 KB = 5.5 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 Contents/_CodeSignature/CodeResources: 3,310 bytes (3.2 KB = 0.0 MB)
-Contents/Info.plist: 1,134 bytes (1.1 KB = 0.0 MB)
-Contents/MacOS/SizeTestApp: 4,563,616 bytes (4,456.7 KB = 4.4 MB)
+Contents/Info.plist: 1,109 bytes (1.1 KB = 0.0 MB)
+Contents/MacOS/SizeTestApp: 4,565,824 bytes (4,458.8 KB = 4.4 MB)
 Contents/MonoBundle/Microsoft.MacCatalyst.dll: 157,696 bytes (154.0 KB = 0.2 MB)
 Contents/MonoBundle/runtimeconfig.bin: 1,405 bytes (1.4 KB = 0.0 MB)
 Contents/MonoBundle/SizeTestApp.dll: 7,680 bytes (7.5 KB = 0.0 MB)
diff --git a/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-size.txt b/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-size.txt
index 52a8c96e3d92..95a289092679 100644
--- a/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-size.txt
+++ b/tests/dotnet/UnitTests/expected/MacCatalyst-MonoVM-size.txt
@@ -1,8 +1,8 @@
-AppBundleSize: 16,306,397 bytes (15,924.2 KB = 15.6 MB)
+AppBundleSize: 16,308,596 bytes (15,926.4 KB = 15.6 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 Contents/_CodeSignature/CodeResources: 4,134 bytes (4.0 KB = 0.0 MB)
-Contents/Info.plist: 1,134 bytes (1.1 KB = 0.0 MB)
-Contents/MacOS/SizeTestApp: 13,795,584 bytes (13,472.2 KB = 13.2 MB)
+Contents/Info.plist: 1,109 bytes (1.1 KB = 0.0 MB)
+Contents/MacOS/SizeTestApp: 13,797,808 bytes (13,474.4 KB = 13.2 MB)
 Contents/MonoBundle/aot-instances.aotdata.arm64: 1,045,032 bytes (1,020.5 KB = 1.0 MB)
 Contents/MonoBundle/Microsoft.MacCatalyst.aotdata.arm64: 35,976 bytes (35.1 KB = 0.0 MB)
 Contents/MonoBundle/Microsoft.MacCatalyst.dll: 51,200 bytes (50.0 KB = 0.0 MB)
diff --git a/tests/dotnet/UnitTests/expected/MacCatalyst-NativeAOT-size.txt b/tests/dotnet/UnitTests/expected/MacCatalyst-NativeAOT-size.txt
index cdb5ac64f118..4b2080c9b402 100644
--- a/tests/dotnet/UnitTests/expected/MacCatalyst-NativeAOT-size.txt
+++ b/tests/dotnet/UnitTests/expected/MacCatalyst-NativeAOT-size.txt
@@ -1,7 +1,7 @@
-AppBundleSize: 2,781,164 bytes (2,716.0 KB = 2.7 MB)
+AppBundleSize: 2,781,139 bytes (2,716.0 KB = 2.7 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 Contents/_CodeSignature/CodeResources: 2,358 bytes (2.3 KB = 0.0 MB)
-Contents/Info.plist: 1,134 bytes (1.1 KB = 0.0 MB)
+Contents/Info.plist: 1,109 bytes (1.1 KB = 0.0 MB)
 Contents/MacOS/SizeTestApp: 2,775,856 bytes (2,710.8 KB = 2.6 MB)
 Contents/MonoBundle/runtimeconfig.bin: 1,808 bytes (1.8 KB = 0.0 MB)
 Contents/PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
diff --git a/tests/dotnet/UnitTests/expected/MacOSX-CoreCLR-Interpreter-size.txt b/tests/dotnet/UnitTests/expected/MacOSX-CoreCLR-Interpreter-size.txt
index ef51df0c37dc..e30a72fc865a 100644
--- a/tests/dotnet/UnitTests/expected/MacOSX-CoreCLR-Interpreter-size.txt
+++ b/tests/dotnet/UnitTests/expected/MacOSX-CoreCLR-Interpreter-size.txt
@@ -1,8 +1,8 @@
-AppBundleSize: 247,399,249 bytes (241,600.8 KB = 235.9 MB)
+AppBundleSize: 247,399,144 bytes (241,600.7 KB = 235.9 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 Contents/_CodeSignature/CodeResources: 67,160 bytes (65.6 KB = 0.1 MB)
-Contents/Info.plist: 765 bytes (0.7 KB = 0.0 MB)
-Contents/MacOS/SizeTestApp: 8,001,664 bytes (7,814.1 KB = 7.6 MB)
+Contents/Info.plist: 740 bytes (0.7 KB = 0.0 MB)
+Contents/MacOS/SizeTestApp: 8,001,584 bytes (7,814.0 KB = 7.6 MB)
 Contents/MonoBundle/.xamarin/osx-arm64/Microsoft.CSharp.dll: 893,192 bytes (872.3 KB = 0.9 MB)
 Contents/MonoBundle/.xamarin/osx-arm64/Microsoft.macOS.dll: 36,723,712 bytes (35,863.0 KB = 35.0 MB)
 Contents/MonoBundle/.xamarin/osx-arm64/Microsoft.VisualBasic.Core.dll: 1,335,096 bytes (1,303.8 KB = 1.3 MB)
diff --git a/tests/dotnet/UnitTests/expected/MacOSX-NativeAOT-size.txt b/tests/dotnet/UnitTests/expected/MacOSX-NativeAOT-size.txt
index 1e6936a9baf1..a6820a148b58 100644
--- a/tests/dotnet/UnitTests/expected/MacOSX-NativeAOT-size.txt
+++ b/tests/dotnet/UnitTests/expected/MacOSX-NativeAOT-size.txt
@@ -1,7 +1,7 @@
-AppBundleSize: 8,818,829 bytes (8,612.1 KB = 8.4 MB)
+AppBundleSize: 8,818,804 bytes (8,612.1 KB = 8.4 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 Contents/_CodeSignature/CodeResources: 3,489 bytes (3.4 KB = 0.0 MB)
-Contents/Info.plist: 765 bytes (0.7 KB = 0.0 MB)
+Contents/Info.plist: 740 bytes (0.7 KB = 0.0 MB)
 Contents/MacOS/SizeTestApp: 5,825,216 bytes (5,688.7 KB = 5.6 MB)
 Contents/MonoBundle/libSystem.Globalization.Native.dylib: 252,176 bytes (246.3 KB = 0.2 MB)
 Contents/MonoBundle/libSystem.IO.Compression.Native.dylib: 2,005,440 bytes (1,958.4 KB = 1.9 MB)
diff --git a/tests/dotnet/UnitTests/expected/TVOS-MonoVM-interpreter-size.txt b/tests/dotnet/UnitTests/expected/TVOS-MonoVM-interpreter-size.txt
index 849724285165..9b59be98d2e3 100644
--- a/tests/dotnet/UnitTests/expected/TVOS-MonoVM-interpreter-size.txt
+++ b/tests/dotnet/UnitTests/expected/TVOS-MonoVM-interpreter-size.txt
@@ -1,8 +1,8 @@
-AppBundleSize: 3,616,988 bytes (3,532.2 KB = 3.4 MB)
+AppBundleSize: 3,616,963 bytes (3,532.2 KB = 3.4 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 _CodeSignature/CodeResources: 3,999 bytes (3.9 KB = 0.0 MB)
 archived-expanded-entitlements.xcent: 384 bytes (0.4 KB = 0.0 MB)
-Info.plist: 1,152 bytes (1.1 KB = 0.0 MB)
+Info.plist: 1,127 bytes (1.1 KB = 0.0 MB)
 Microsoft.tvOS.dll: 154,624 bytes (151.0 KB = 0.1 MB)
 PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
 runtimeconfig.bin: 1,405 bytes (1.4 KB = 0.0 MB)
diff --git a/tests/dotnet/UnitTests/expected/TVOS-MonoVM-size.txt b/tests/dotnet/UnitTests/expected/TVOS-MonoVM-size.txt
index c88dc21f6024..b781f52294ef 100644
--- a/tests/dotnet/UnitTests/expected/TVOS-MonoVM-size.txt
+++ b/tests/dotnet/UnitTests/expected/TVOS-MonoVM-size.txt
@@ -1,9 +1,9 @@
-AppBundleSize: 9,364,002 bytes (9,144.5 KB = 8.9 MB)
+AppBundleSize: 9,363,977 bytes (9,144.5 KB = 8.9 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 _CodeSignature/CodeResources: 5,233 bytes (5.1 KB = 0.0 MB)
 aot-instances.aotdata.arm64: 827,592 bytes (808.2 KB = 0.8 MB)
 archived-expanded-entitlements.xcent: 384 bytes (0.4 KB = 0.0 MB)
-Info.plist: 1,152 bytes (1.1 KB = 0.0 MB)
+Info.plist: 1,127 bytes (1.1 KB = 0.0 MB)
 Microsoft.tvOS.aotdata.arm64: 22,584 bytes (22.1 KB = 0.0 MB)
 Microsoft.tvOS.dll: 49,152 bytes (48.0 KB = 0.0 MB)
 PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
diff --git a/tests/dotnet/UnitTests/expected/TVOS-NativeAOT-size.txt b/tests/dotnet/UnitTests/expected/TVOS-NativeAOT-size.txt
index 1c0079df40ed..4f8503a77029 100644
--- a/tests/dotnet/UnitTests/expected/TVOS-NativeAOT-size.txt
+++ b/tests/dotnet/UnitTests/expected/TVOS-NativeAOT-size.txt
@@ -1,8 +1,8 @@
-AppBundleSize: 2,783,157 bytes (2,717.9 KB = 2.7 MB)
+AppBundleSize: 2,783,132 bytes (2,717.9 KB = 2.7 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 _CodeSignature/CodeResources: 2,589 bytes (2.5 KB = 0.0 MB)
 archived-expanded-entitlements.xcent: 384 bytes (0.4 KB = 0.0 MB)
-Info.plist: 1,152 bytes (1.1 KB = 0.0 MB)
+Info.plist: 1,127 bytes (1.1 KB = 0.0 MB)
 PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
 runtimeconfig.bin: 1,808 bytes (1.8 KB = 0.0 MB)
 SizeTestApp: 2,777,216 bytes (2,712.1 KB = 2.6 MB)
diff --git a/tests/dotnet/UnitTests/expected/iOS-MonoVM-interpreter-size.txt b/tests/dotnet/UnitTests/expected/iOS-MonoVM-interpreter-size.txt
index ba4a3626e564..9bbaeb901f2e 100644
--- a/tests/dotnet/UnitTests/expected/iOS-MonoVM-interpreter-size.txt
+++ b/tests/dotnet/UnitTests/expected/iOS-MonoVM-interpreter-size.txt
@@ -1,12 +1,12 @@
-AppBundleSize: 3,603,954 bytes (3,519.5 KB = 3.4 MB)
+AppBundleSize: 3,603,401 bytes (3,518.9 KB = 3.4 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 _CodeSignature/CodeResources: 3,997 bytes (3.9 KB = 0.0 MB)
 archived-expanded-entitlements.xcent: 384 bytes (0.4 KB = 0.0 MB)
-Info.plist: 1,176 bytes (1.1 KB = 0.0 MB)
+Info.plist: 1,151 bytes (1.1 KB = 0.0 MB)
 Microsoft.iOS.dll: 154,624 bytes (151.0 KB = 0.1 MB)
 PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
 runtimeconfig.bin: 1,405 bytes (1.4 KB = 0.0 MB)
-SizeTestApp: 2,391,360 bytes (2,335.3 KB = 2.3 MB)
+SizeTestApp: 2,390,832 bytes (2,334.8 KB = 2.3 MB)
 SizeTestApp.dll: 7,680 bytes (7.5 KB = 0.0 MB)
 System.Private.CoreLib.aotdata.arm64: 41,336 bytes (40.4 KB = 0.0 MB)
 System.Private.CoreLib.dll: 988,672 bytes (965.5 KB = 0.9 MB)
diff --git a/tests/dotnet/UnitTests/expected/iOS-MonoVM-size.txt b/tests/dotnet/UnitTests/expected/iOS-MonoVM-size.txt
index c3f59edaeca0..cd5b7fd56d92 100644
--- a/tests/dotnet/UnitTests/expected/iOS-MonoVM-size.txt
+++ b/tests/dotnet/UnitTests/expected/iOS-MonoVM-size.txt
@@ -1,14 +1,14 @@
-AppBundleSize: 9,338,878 bytes (9,120.0 KB = 8.9 MB)
+AppBundleSize: 9,338,325 bytes (9,119.5 KB = 8.9 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 _CodeSignature/CodeResources: 5,229 bytes (5.1 KB = 0.0 MB)
 aot-instances.aotdata.arm64: 827,592 bytes (808.2 KB = 0.8 MB)
 archived-expanded-entitlements.xcent: 384 bytes (0.4 KB = 0.0 MB)
-Info.plist: 1,176 bytes (1.1 KB = 0.0 MB)
+Info.plist: 1,151 bytes (1.1 KB = 0.0 MB)
 Microsoft.iOS.aotdata.arm64: 22,944 bytes (22.4 KB = 0.0 MB)
 Microsoft.iOS.dll: 49,152 bytes (48.0 KB = 0.0 MB)
 PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
 runtimeconfig.bin: 1,481 bytes (1.4 KB = 0.0 MB)
-SizeTestApp: 7,235,648 bytes (7,066.1 KB = 6.9 MB)
+SizeTestApp: 7,235,120 bytes (7,065.5 KB = 6.9 MB)
 SizeTestApp.aotdata.arm64: 1,464 bytes (1.4 KB = 0.0 MB)
 SizeTestApp.dll: 7,168 bytes (7.0 KB = 0.0 MB)
 System.Private.CoreLib.aotdata.arm64: 640,792 bytes (625.8 KB = 0.6 MB)
diff --git a/tests/dotnet/UnitTests/expected/iOS-NativeAOT-size.txt b/tests/dotnet/UnitTests/expected/iOS-NativeAOT-size.txt
index 354f90311a54..cbe1ecbbce3b 100644
--- a/tests/dotnet/UnitTests/expected/iOS-NativeAOT-size.txt
+++ b/tests/dotnet/UnitTests/expected/iOS-NativeAOT-size.txt
@@ -1,8 +1,8 @@
-AppBundleSize: 2,784,445 bytes (2,719.2 KB = 2.7 MB)
+AppBundleSize: 2,783,892 bytes (2,718.6 KB = 2.7 MB)
 # The following list of files and their sizes is just informational / for review, and isn't used in the test:
 _CodeSignature/CodeResources: 2,589 bytes (2.5 KB = 0.0 MB)
 archived-expanded-entitlements.xcent: 384 bytes (0.4 KB = 0.0 MB)
-Info.plist: 1,176 bytes (1.1 KB = 0.0 MB)
+Info.plist: 1,151 bytes (1.1 KB = 0.0 MB)
 PkgInfo: 8 bytes (0.0 KB = 0.0 MB)
 runtimeconfig.bin: 1,808 bytes (1.8 KB = 0.0 MB)
-SizeTestApp: 2,778,480 bytes (2,713.4 KB = 2.6 MB)
+SizeTestApp: 2,777,952 bytes (2,712.8 KB = 2.6 MB)