add more platform color alias to SwiftUI Color

Sources/CyanExtensions/PlatformColor+Extension.swift

@@ -3,40 +3,81 @@
 //  Copyright (c) 2021 ktiays. All rights reserved.
 //
 
-#if os(iOS)
+#if canImport(UIKit)
+
 import UIKit
 public typealias PlatformColor = UIColor
-#else
-import AppKit
-public typealias PlatformColor = NSColor
-#endif
 
 public extension PlatformColor {
 
-    #if os(macOS)
-    static var label: PlatformColor {
-        return .labelColor
-    }
-    #endif
+    /// A color that reflects the accent color of the system or app.
+    ///
+    /// The accent color is a broad theme color applied to views and controls.
+    /// You can set it at the application level by specifying an accent color in your app’s asset catalog.
+    static let accentColor: UIColor? = .init(named: "AccentColor")
 
     convenience init(lightColor: PlatformColor, darkColor: PlatformColor) {
-#if os(iOS)
         self.init(dynamicProvider: { traitCollection in
             if traitCollection.userInterfaceStyle == .dark {
                 return darkColor
             } else {
                 return lightColor
             }
         })
-#else
+    }
+
+    convenience init(integalRed: Int, green: Int, blue: Int, alpha: CGFloat) {
+        self.init(red: max(0, min(CGFloat(integalRed) / 255, 1)),
+                  green: max(0, min(CGFloat(green) / 255, 1)),
+                  blue: max(0, min(CGFloat(blue) / 255, 1)),
+                  alpha: alpha)
+    }
+
+}
+
+#elseif canImport(AppKit)
+
+import AppKit
+public typealias PlatformColor = NSColor
+
+public extension PlatformColor {
+
+    convenience init(lightColor: PlatformColor, darkColor: PlatformColor) {
         self.init(name: nil, dynamicProvider: { appearance in
             if appearance.name == .darkAqua {
                 return darkColor
             } else {
                 return lightColor
             }
         })
-#endif
     }
 
+    convenience init(integalRed: Int, green: Int, blue: Int, alpha: CGFloat) {
+        self.init(red: max(0, min(CGFloat(integalRed) / 255, 1)),
+                  green: max(0, min(CGFloat(green) / 255, 1)),
+                  blue: max(0, min(CGFloat(blue) / 255, 1)),
+                  alpha: alpha)
+    }
+
+}
+
+public extension PlatformColor {
+
+    /// The primary color to use for text labels.
+    ///
+    /// Use this color in the most important text labels of your user interface.
+    /// You can also use it for other types of primary app content.
+    ///
+    /// This color is the same as `labelColor`.
+    static let label: NSColor = .labelColor
+
+    /// The color to use for separators between different sections of content.
+    ///
+    /// Do not use this color for split view dividers or window chrome dividers.
+    ///
+    /// This color is the same as `separatorColor`.
+    static let separator: NSColor = .separatorColor
+
 }
+
+#endif