fix: replace generic icon with beacon-specific icon and match Android color scheme

- App icon now uses white bg + PAYFRIT text + bluetooth beacon icon (matches Android)
- AccentColor set to Payfrit Green (#22B24B)
- Added BrandColors.swift with full Android color palette parity
- All views updated: payfritGreen replaces .blue, proper status colors throughout
- Signal strength, beacon type badges, QR scanner corners all use brand colors
- DevBanner uses warningOrange matching Android's #FF9800

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

PayfritBeacon.xcodeproj/project.pbxproj

@@ -27,6 +27,7 @@
 		A01000000040 /* BeaconBanList.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000040 /* BeaconBanList.swift */; };
 		A01000000041 /* BeaconShardPool.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000041 /* BeaconShardPool.swift */; };
 		A01000000042 /* UUIDFormatting.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000042 /* UUIDFormatting.swift */; };
+		A01000000043 /* BrandColors.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000043 /* BrandColors.swift */; };
 		A01000000050 /* BusinessListView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000050 /* BusinessListView.swift */; };
 		A01000000051 /* DevBanner.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000051 /* DevBanner.swift */; };
 		A01000000052 /* LoginView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A02000000052 /* LoginView.swift */; };
@@ -57,6 +58,7 @@
 		A02000000032 /* BLEManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BLEManager.swift; sourceTree = "<group>"; };
 		A02000000033 /* SecureStorage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SecureStorage.swift; sourceTree = "<group>"; };
 		A02000000040 /* BeaconBanList.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BeaconBanList.swift; sourceTree = "<group>"; };
+		A02000000043 /* BrandColors.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BrandColors.swift; sourceTree = "<group>"; };
 		A02000000041 /* BeaconShardPool.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BeaconShardPool.swift; sourceTree = "<group>"; };
 		A02000000042 /* UUIDFormatting.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UUIDFormatting.swift; sourceTree = "<group>"; };
 		A02000000050 /* BusinessListView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BusinessListView.swift; sourceTree = "<group>"; };
@@ -167,6 +169,7 @@
 				A02000000040 /* BeaconBanList.swift */,
 				A02000000041 /* BeaconShardPool.swift */,
 				A02000000042 /* UUIDFormatting.swift */,
+				A02000000043 /* BrandColors.swift */,
 			);
 			path = Utils;
 			sourceTree = "<group>";
@@ -276,6 +279,7 @@
 				A01000000040 /* BeaconBanList.swift in Sources */,
 				A01000000041 /* BeaconShardPool.swift in Sources */,
 				A01000000042 /* UUIDFormatting.swift in Sources */,
+				A01000000043 /* BrandColors.swift in Sources */,
 				A01000000050 /* BusinessListView.swift in Sources */,
 				A01000000051 /* DevBanner.swift in Sources */,
 				A01000000052 /* LoginView.swift in Sources */,

PayfritBeacon/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -1,6 +1,15 @@
 {
   "colors" : [
     {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0.294",
+          "green" : "0.698",
+          "red" : "0.133"
+        }
+      },
       "idiom" : "universal"
     }
   ],

PayfritBeacon/Assets.xcassets/PayfritGreen.colorset/Contents.json

@@ -0,0 +1,20 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0x4B",
+          "green" : "0xB2",
+          "red" : "0x22"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

PayfritBeacon/Assets.xcassets/PayfritGreenDark.colorset/Contents.json

@@ -0,0 +1,20 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0x3A",
+          "green" : "0x8A",
+          "red" : "0x1A"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

PayfritBeacon/Utils/BrandColors.swift

@@ -0,0 +1,30 @@
+import SwiftUI
+
+/// Payfrit brand colors — matches Android colors.xml exactly
+/// Primary: #22B24B (Payfrit Green)
+/// Dark: #1A8A3A
+extension Color {
+    // MARK: - Brand
+    static let payfritGreen = Color(red: 0x22/255.0, green: 0xB2/255.0, blue: 0x4B/255.0)
+    static let payfritGreenDark = Color(red: 0x1A/255.0, green: 0x8A/255.0, blue: 0x3A/255.0)
+
+    // MARK: - Status (matching Android)
+    static let successGreen = Color(red: 0x4C/255.0, green: 0xAF/255.0, blue: 0x50/255.0)
+    static let errorRed = Color(red: 0xBA/255.0, green: 0x1A/255.0, blue: 0x1A/255.0)
+    static let warningOrange = Color(red: 0xFF/255.0, green: 0x98/255.0, blue: 0x00/255.0)
+    static let infoBlue = Color(red: 0x21/255.0, green: 0x96/255.0, blue: 0xF3/255.0)
+
+    // MARK: - Signal Strength (matching Android)
+    static let signalStrong = Color(red: 0x4C/255.0, green: 0xAF/255.0, blue: 0x50/255.0)
+    static let signalMedium = Color(red: 0xF9/255.0, green: 0xA8/255.0, blue: 0x25/255.0)
+    static let signalWeak = Color(red: 0xBA/255.0, green: 0x1A/255.0, blue: 0x1A/255.0)
+
+    // MARK: - Surfaces (matching Android)
+    static let surfaceBg = Color(red: 0xFC/255.0, green: 0xFD/255.0, blue: 0xF7/255.0)
+    static let surfaceCard = Color(red: 0xF0/255.0, green: 0xF1/255.0, blue: 0xEB/255.0)
+
+    // MARK: - Text (matching Android)
+    static let textPrimary = Color(red: 0x1A/255.0, green: 0x1C/255.0, blue: 0x19/255.0)
+    static let textSecondary = Color(red: 0x42/255.0, green: 0x49/255.0, blue: 0x40/255.0)
+    static let textHint = Color(red: 0x72/255.0, green: 0x79/255.0, blue: 0x70/255.0)
+}

PayfritBeacon/Views/BusinessListView.swift

@@ -26,7 +26,7 @@ struct BusinessListView: View {
                         VStack(spacing: 12) {
                             Image(systemName: "exclamationmark.triangle")
                                 .font(.system(size: 48))
-                                .foregroundStyle(.orange)
+                                .foregroundStyle(.warningOrange)
                             Text("Error")
                                 .font(.headline)
                             Text(error)

PayfritBeacon/Views/DevBanner.swift

@@ -8,7 +8,7 @@ struct DevBanner: View {
             .foregroundStyle(.white)
             .padding(.horizontal, 12)
             .padding(.vertical, 4)
-            .background(.orange, in: Capsule())
+            .background(.warningOrange, in: Capsule())
             .padding(.top, 4)
     }
 }

PayfritBeacon/Views/LoginView.swift

@@ -20,7 +20,7 @@ struct LoginView: View {
                 // Logo
                 Image(systemName: "antenna.radiowaves.left.and.right")
                     .font(.system(size: 64))
-                    .foregroundStyle(.blue)
+                    .foregroundStyle(.payfritGreen)
 
                 Text("Payfrit Beacon")
                     .font(.title.bold())
@@ -49,7 +49,7 @@ struct LoginView: View {
                     if let error = errorMessage {
                         Text(error)
                             .font(.caption)
-                            .foregroundStyle(.red)
+                            .foregroundStyle(.errorRed)
                     }
 
                     Button(action: handleAction) {

PayfritBeacon/Views/QRScannerView.swift

@@ -101,7 +101,7 @@ struct QRScannerView: View {
                             p.addLine(to: CGPoint(x: 0, y: 0))
                             p.addLine(to: CGPoint(x: corner, y: 0))
                         }
-                        .stroke(.blue, lineWidth: thickness)
+                        .stroke(.payfritGreen, lineWidth: thickness)
 
                         // Top-right
                         Path { p in
@@ -109,7 +109,7 @@ struct QRScannerView: View {
                             p.addLine(to: CGPoint(x: w, y: 0))
                             p.addLine(to: CGPoint(x: w, y: corner))
                         }
-                        .stroke(.blue, lineWidth: thickness)
+                        .stroke(.payfritGreen, lineWidth: thickness)
 
                         // Bottom-left
                         Path { p in
@@ -117,7 +117,7 @@ struct QRScannerView: View {
                             p.addLine(to: CGPoint(x: 0, y: h))
                             p.addLine(to: CGPoint(x: corner, y: h))
                         }
-                        .stroke(.blue, lineWidth: thickness)
+                        .stroke(.payfritGreen, lineWidth: thickness)
 
                         // Bottom-right
                         Path { p in
@@ -125,7 +125,7 @@ struct QRScannerView: View {
                             p.addLine(to: CGPoint(x: w, y: h))
                             p.addLine(to: CGPoint(x: w, y: h - corner))
                         }
-                        .stroke(.blue, lineWidth: thickness)
+                        .stroke(.payfritGreen, lineWidth: thickness)
                     }
                 }
 

PayfritBeacon/Views/ScanView.swift

@@ -116,7 +116,7 @@ struct ScanView: View {
                                     .padding(.horizontal, 14)
                                     .padding(.vertical, 8)
                                     .background(
-                                        selectedServicePoint?.id == sp.id ? Color.blue : Color(.systemGray5),
+                                        selectedServicePoint?.id == sp.id ? Color.payfritGreen : Color(.systemGray5),
                                         in: Capsule()
                                     )
                                     .foregroundStyle(selectedServicePoint?.id == sp.id ? .white : .primary)
@@ -174,7 +174,7 @@ struct ScanView: View {
                     VStack(spacing: 12) {
                         Image(systemName: "exclamationmark.triangle")
                             .font(.system(size: 48))
-                            .foregroundStyle(.orange)
+                            .foregroundStyle(.warningOrange)
                         Text("Namespace Error")
                             .font(.headline)
                         Text(errorMessage ?? "Failed to allocate beacon namespace")
@@ -240,7 +240,7 @@ struct ScanView: View {
             if bleManager.bluetoothState != .poweredOn {
                 Label("Bluetooth Off", systemImage: "bluetooth.slash")
                     .font(.caption)
-                    .foregroundStyle(.red)
+                    .foregroundStyle(.errorRed)
             }
         }
         .padding(.horizontal)
@@ -323,7 +323,7 @@ struct ScanView: View {
 
             Image(systemName: "light.beacon.max")
                 .font(.system(size: 64))
-                .foregroundStyle(.orange)
+                .foregroundStyle(.payfritGreen)
                 .modifier(PulseEffectModifier())
 
             Text("Beacon is Flashing")
@@ -345,7 +345,7 @@ struct ScanView: View {
                 .frame(maxWidth: .infinity)
             }
             .buttonStyle(.borderedProminent)
-            .tint(.orange)
+            .tint(.payfritGreen)
             .controlSize(.large)
             .padding(.horizontal, 32)
 
@@ -379,7 +379,7 @@ struct ScanView: View {
             Spacer()
             Image(systemName: "checkmark.circle.fill")
                 .font(.system(size: 64))
-                .foregroundStyle(.green)
+                .foregroundStyle(.successGreen)
             Text("Beacon Provisioned!")
                 .font(.title2.bold())
             Text(statusMessage)
@@ -400,7 +400,7 @@ struct ScanView: View {
             Spacer()
             Image(systemName: "xmark.circle.fill")
                 .font(.system(size: 64))
-                .foregroundStyle(.red)
+                .foregroundStyle(.errorRed)
             Text("Provisioning Failed")
                 .font(.title2.bold())
             Text(errorMessage ?? "Unknown error")
@@ -801,18 +801,18 @@ struct BeaconRow: View {
 
     private var signalColor: Color {
         switch beacon.rssi {
-        case -50...0:    return .green
+        case -50...0:    return .signalStrong
-        case -65 ... -51: return .blue
+        case -65 ... -51: return .payfritGreen
-        case -80 ... -66: return .orange
+        case -80 ... -66: return .signalMedium
-        default:          return .red
+        default:          return .signalWeak
         }
     }
 
     private var typeColor: Color {
         switch beacon.type {
-        case .kbeacon:   return .blue
+        case .kbeacon:   return .payfritGreen
-        case .dxsmart:   return .orange
+        case .dxsmart:   return .warningOrange
-        case .bluecharm: return .purple
+        case .bluecharm: return .infoBlue
         case .unknown:   return .gray
         }
     }