[NFC] Optimize shape related code

Sources/OpenSwiftUICore/Graphic/GraphicsContext.swift

@@ -40,6 +40,11 @@ public enum CGBlendMode: Int32, @unchecked Sendable {
 }
 #endif
 
+package enum PathDrawingStyle {
+    case fill(FillStyle)
+    case stroke(StrokeStyle)
+}
+
 /// An immediate mode drawing destination, and its current state.
 ///
 /// Use a context to execute 2D drawing primitives. For example, you can draw

Sources/OpenSwiftUICore/Render/Util/CGBlendModeUtil.swift

@@ -0,0 +1,39 @@
+//
+//  CGBlendModeUtil.swift
+//  OpenSwiftUICore
+//
+//  Audited for 6.5.4
+//  Status: Complete
+
+#if canImport(CoreGraphics)
+package import CoreGraphics
+
+extension BlendMode {
+    package init(_ blendMode: CGBlendMode) {
+        self = switch blendMode {
+            case .normal: .normal
+            case .multiply: .multiply
+            case .screen: .screen
+            case .overlay: .overlay
+            case .darken: .darken
+            case .lighten: .lighten
+            case .colorDodge: .colorDodge
+            case .colorBurn: .colorBurn
+            case .softLight: .softLight
+            case .hardLight: .hardLight
+            case .difference: .difference
+            case .exclusion: .exclusion
+            case .hue: .hue
+            case .saturation: .saturation
+            case .color: .color
+            case .luminosity: .luminosity
+            case .sourceAtop: .sourceAtop
+            case .destinationOver: .destinationOver
+            case .destinationOut: .destinationOut
+            case .plusDarker: .plusDarker
+            case .plusLighter: .plusLighter
+            default: .normal
+        }
+    }
+}
+#endif

Sources/OpenSwiftUICore/Shape/FillStyle.swift

@@ -2,10 +2,11 @@
 //  FillStyle.swift
 //  OpenSwiftUICore
 //
-//  Audited for 6.0.87
+//  Audited for 6.5.4
 //  Status: Complete
 
 /// A style for rasterizing vector shapes.
+@available(OpenSwiftUI_v1_0, *)
 @frozen
 public struct FillStyle: Equatable {
 

Sources/OpenSwiftUICore/Shape/ShapeStyle/BlendMode.swift

@@ -8,6 +8,7 @@
 // MARK: - BlendMode
 
 /// Modes for compositing a view with overlapping content.
+@available(OpenSwiftUI_v1_0, *)
 public enum BlendMode: Sendable {
     case normal
     case multiply
@@ -32,39 +33,6 @@ public enum BlendMode: Sendable {
     case plusLighter
 }
 
-#if canImport(CoreGraphics)
-package import CoreGraphics
-
-extension BlendMode {
-    package init(_ blendMode: CGBlendMode) {
-        self = switch blendMode {
-            case .normal: .normal
-            case .multiply: .multiply
-            case .screen: .screen
-            case .overlay: .overlay
-            case .darken: .darken
-            case .lighten: .lighten
-            case .colorDodge: .colorDodge
-            case .colorBurn: .colorBurn
-            case .softLight: .softLight
-            case .hardLight: .hardLight
-            case .difference: .difference
-            case .exclusion: .exclusion
-            case .hue: .hue
-            case .saturation: .saturation
-            case .color: .color
-            case .luminosity: .luminosity
-            case .sourceAtop: .sourceAtop
-            case .destinationOver: .destinationOver
-            case .destinationOut: .destinationOut
-            case .plusDarker: .plusDarker
-            case .plusLighter: .plusLighter
-            default: .normal
-        }
-    }
-}
-#endif
-
 extension ShapeStyle {
     /// Returns a new style based on `self` that applies the specified
     /// blend mode when drawing.

Sources/OpenSwiftUICore/Shape/ShapeStyle/ShapeStyleRenderedShape.swift → Sources/OpenSwiftUICore/Shape/ShapeStyle/ShapeStyleRendering.swift

@@ -1,10 +1,10 @@
 //
-//  ShapeStyle_RenderedShape.swift
+//  ShapeStyleRendering.swift
 //  OpenSwiftUICore
 //
 //  Audited for 6.0.87
 //  Status: WIP
-//  ID: 3890C65F12EA82A4BC5FBD33046B67FA (?)
+//  ID: 3890C65F12EA82A4BC5FBD33046B67FA (SwiftUICore)
 
 extension ShapeStyle {
     package typealias RenderedShape = _ShapeStyle_RenderedShape

Sources/OpenSwiftUICore/Shape/StrokeStyle.swift

@@ -2,13 +2,14 @@
 //  StrokeStyle.swift
 //  OpenSwiftUICore
 //
-//  Audited for 6.0.87
+//  Audited for 6.5.4
 //  Status: Complete
 
 public import Foundation
 public import OpenCoreGraphicsShims
 
 /// The characteristics of a stroke that traces a path.
+@available(OpenSwiftUI_v1_0, *)
 @frozen
 public struct StrokeStyle: Equatable {
     /// The width of the stroked path.
@@ -51,6 +52,7 @@ public struct StrokeStyle: Equatable {
     }
 }
 
+@available(OpenSwiftUI_v1_0, *)
 extension StrokeStyle: Animatable {
     public var animatableData: AnimatablePair<CGFloat, AnimatablePair<CGFloat, CGFloat>> {
         get {