🎨 Hex color init

Author: benlmyers

Sources/ShinySwiftUI/Extensions/SwiftUI/Color/Color.swift

@@ -10,6 +10,32 @@ import SwiftUI
 @available(macOS 11.0, iOS 13.0, *)
 public extension Color {
 
+  // MARK: - Public Initalizers
+  
+  init(hex: String) {
+    let hex = hex.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
+    var int: UInt64 = 0
+    Scanner(string: hex).scanHexInt64(&int)
+    let a, r, g, b: UInt64
+    switch hex.count {
+    case 3: // RGB (12-bit)
+      (a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
+    case 6: // RGB (24-bit)
+      (a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
+    case 8: // ARGB (32-bit)
+      (a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
+    default:
+      (a, r, g, b) = (1, 1, 1, 0)
+    }
+    self.init(
+      .sRGB,
+      red: Double(r) / 255,
+      green: Double(g) / 255,
+      blue:  Double(b) / 255,
+      opacity: Double(a) / 255
+    )
+  }
+  
   // MARK: - Public Methods
 
   /**