Modified README.md +5 -0

Added Source/XFESystem.Browser/BackgroundBrowserEditorSession.cs +222 -0

Modified Source/XFESystem.Browser/BrowserCanvasSurface.cs +7 -0

Added Source/XFESystem.Browser/BrowserEditorPreparationService.cs +132 -0

Modified Source/XFESystem.Browser/BrowserInteractivePage.cs +12 -1

Modified Source/XFESystem.Browser/BrowserPageResources.cs +9 -0

Added Source/XFESystem.Browser/BrowserPaintSnapshot.cs +139 -0

Modified Source/XFESystem.Browser/BrowserResourceSource.cs +23 -14

Added Source/XFESystem.Browser/BrowserService.EditorPreparation.cs +57 -0

Modified Source/XFESystem.Browser/BrowserService.WebsiteProof.cs +5 -0

Modified Source/XFESystem.Browser/BrowserService.cs +7 -0

Modified Source/XFESystem.Desktop/DesktopChromeRenderer.cs +6 -1

Modified Source/XFESystem.Desktop/DesktopPointerRenderer.cs +12 -3

Modified Source/XFESystem.Desktop/DesktopSession.cs +192 -13

Added Source/XFESystem.Desktop/DesktopWallpaper.cs +46 -0

Modified Source/XFESystem.Desktop/DesktopWindow.cs +6 -0

Modified Source/XFESystem.Desktop/DesktopWindowChromeRenderer.cs +16 -8

Added Source/XFESystem.Desktop/EditorPreparation.cs +51 -0

Modified Source/XFESystem.Desktop/InteractiveBrowser.cs +2 -0

Modified Source/XFESystem.Documents/WebsiteAssets.cs +59 -3

Modified Source/XFESystem.Kernel/CanvasAdapter.cs +93 -15

Modified Source/XFESystem.Kernel/Kernel.cs +79 -8

Modified Source/XFESystem.Kernel/NativeDesktopInput.cs +22 -2

Added Source/XFESystem.Kernel/NativeManagedWorkScheduler.cs +53 -0

Added Source/XFESystem.Kernel/NativeRuntimeMemoryDiagnostics.cs +17 -0

Added Source/XFESystem.Kernel/NativeThreadRegression.cs +138 -0

Modified Source/XFESystem.Kernel/XFESystem.Kernel.csproj +1 -0

Added Tests/XFESystem.Browser.Tests/BrowserPaintSnapshotTests.cs +108 -0

Added Tests/XFESystem.Browser.Tests/MonacoNavigationProofTests.cs +40 -0

Added Tests/XFESystem.Browser.Tests/PackagedResourceCacheTests.cs +93 -0

Modified Tests/XFESystem.Core.Tests/CursorRasterTests.cs +20 -0

Modified Tests/XFESystem.Core.Tests/DesktopTests.cs +1 -1

Modified Tests/XFESystem.Core.Tests/WindowChromeRasterTests.cs +7 -5

Modified Tests/XFESystem.Desktop.Platform.Tests/NativeInputTests.cs +19 -0

Added Tests/XFESystem.Desktop.Tests/BackgroundEditorTests.cs +590 -0

Added Tests/XFESystem.Desktop.Tests/PointerReleaseTests.cs +82 -0

Added Tests/XFESystem.Documents.Tests/WebsiteAssetCacheTests.cs +58 -0

Modified Tools/BrowserCompatibility/PaintPerformanceProbe/Program.cs +69 -1

Modified Tools/CSharpBoot/TestBoot.py +70 -5

Modified Tools/GcRuntimePatch/AllocationRuntimePatch.cs +18 -3

Added Tools/GcRuntimePatch/FuncletEhRuntimePatch.cs +51 -0

Added Tools/GcRuntimePatch/NativeThreadEh.s +18 -0

Modified Tools/GcRuntimePatch/Program.cs +15 -2

Modified Tools/GcRuntimePatch/Readme.md +24 -2

Modified Tools/GcRuntimePatch/Tests/Program.cs +60 -1

Added Tools/GcRuntimePatch/ThreadEhRuntimePatch.cs +132 -0

Added Tools/GcRuntimePatch/ThreadStackRuntimePatch.cs +120 -0

Modified Tools/TestBrowserOom.py +9 -0

Modified Tools/TestCSharp.ps1 +10 -2

Modified Tools/TestDesktopUi.py +26 -3

Added Tools/TestEditorResponsiveness.py +232 -0

Modified Tools/TestWebsiteDocument.py +77 -12

Added Validation/CSharp-BackgroundEditor-20261015.json +1352 -0

Added Validation/CSharp-BackgroundEditor-20261015.md +21 -0

Added docs/CSharpBackgroundEditor.md +19 -0