diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
index db96faa..193f9ef 100644
--- a/.github/workflows/ios.yml
+++ b/.github/workflows/ios.yml
@@ -75,11 +75,29 @@ jobs:
           xcrun simctl launch "$SIMULATOR_ID" ru.yukinoki.musicbridge
           sleep 3
           xcrun simctl io "$SIMULATOR_ID" screenshot build/pairing-screen.png
+          xcrun simctl terminate "$SIMULATOR_ID" ru.yukinoki.musicbridge
+          xcrun simctl launch "$SIMULATOR_ID" ru.yukinoki.musicbridge --preview-player
+          sleep 2
+          xcrun simctl io "$SIMULATOR_ID" screenshot build/player-light-screen.png
+          xcrun simctl ui "$SIMULATOR_ID" appearance dark
+          sleep 1
+          xcrun simctl io "$SIMULATOR_ID" screenshot build/player-dark-screen.png
+          xcrun simctl terminate "$SIMULATOR_ID" ru.yukinoki.musicbridge
+          xcrun simctl launch "$SIMULATOR_ID" ru.yukinoki.musicbridge --preview-player --preview-large-text
+          sleep 2
+          xcrun simctl io "$SIMULATOR_ID" screenshot build/player-large-text-screen.png
+          RUNTIME=$(python3 -c 'import json,os; d=json.load(open("/tmp/musicbridge-simulators.json")); print(next(k for k,v in d["devices"].items() if any(x["udid"]==os.environ["SIMULATOR_ID"] for x in v)))')
+          COMPACT_ID=$(xcrun simctl create MusicBridge-Compact com.apple.CoreSimulator.SimDeviceType.iPhone-SE-3rd-generation "$RUNTIME")
+          xcrun simctl bootstatus "$COMPACT_ID" -b
+          xcrun simctl install "$COMPACT_ID" DerivedData/Build/Products/Debug-iphonesimulator/MusicBridge.app
+          xcrun simctl launch "$COMPACT_ID" ru.yukinoki.musicbridge --preview-player
+          sleep 3
+          xcrun simctl io "$COMPACT_ID" screenshot build/player-compact-screen.png
       - name: Save pairing screen
         uses: actions/upload-artifact@v4
         with:
           name: ios-ui-preview
-          path: build/pairing-screen.png
+          path: build/*-screen.png
           retention-days: 7
       - name: Save simulator application
         uses: actions/upload-artifact@v4
diff --git a/MusicBridge.xcodeproj/project.pbxproj b/MusicBridge.xcodeproj/project.pbxproj
index 0b510d1..081d83f 100644
--- a/MusicBridge.xcodeproj/project.pbxproj
+++ b/MusicBridge.xcodeproj/project.pbxproj
@@ -85,6 +85,16 @@
 			"isa" = "PBXBuildFile";
 			"fileRef" = "9C432A0DA0BEC173839EBF86";
 		};
+		"6B0F2027221CDD63E8FD4C59" = {
+			"isa" = "PBXFileReference";
+			"lastKnownFileType" = "sourcecode.swift";
+			"path" = "PreviewSupport.swift";
+			"sourceTree" = "<group>";
+		};
+		"287044ADBD143F929035BC61" = {
+			"isa" = "PBXBuildFile";
+			"fileRef" = "6B0F2027221CDD63E8FD4C59";
+		};
 		"7148B52E915554F67E875C26" = {
 			"isa" = "PBXFileReference";
 			"lastKnownFileType" = "sourcecode.swift";
@@ -99,7 +109,17 @@
 			"isa" = "PBXGroup";
 			"path" = "MusicBridge";
 			"sourceTree" = "<group>";
-			"children" = ("065A9D559DC80AAF876DA757", "763FA6A137E5E94274AC56A3", "971C0AE92F167DE7AB145086", "5F6F408829AB46D3B85FB911", "76FB6BFFC478599567424755", "124CF3F5AC075D1D6042DF64", "ADF0CD56882201BD3AC1581B", "9C432A0DA0BEC173839EBF86", "7148B52E915554F67E875C26",);
+			"children" = ("065A9D559DC80AAF876DA757", "763FA6A137E5E94274AC56A3", "971C0AE92F167DE7AB145086", "5F6F408829AB46D3B85FB911", "76FB6BFFC478599567424755", "124CF3F5AC075D1D6042DF64", "ADF0CD56882201BD3AC1581B", "9C432A0DA0BEC173839EBF86", "6B0F2027221CDD63E8FD4C59", "7148B52E915554F67E875C26", "8BF729FFE074CAEE622C0292",);
+		};
+		"8BF729FFE074CAEE622C0292" = {
+			"isa" = "PBXFileReference";
+			"lastKnownFileType" = "folder.assetcatalog";
+			"path" = "Assets.xcassets";
+			"sourceTree" = "<group>";
+		};
+		"5522B3B3B2EACC1C8F9BEAAC" = {
+			"isa" = "PBXBuildFile";
+			"fileRef" = "8BF729FFE074CAEE622C0292";
 		};
 		"C9F705D432CA45B6056BC572" = {
 			"isa" = "PBXFileReference";
@@ -177,7 +197,7 @@
 		"72B74C8A2143F64FD53D71E5" = {
 			"isa" = "PBXSourcesBuildPhase";
 			"buildActionMask" = 2147483647;
-			"files" = ("82F1C33CE4F8B8F641FF0461", "40D2920E2C996D62B7190BA4", "16EA630DE1FE9F0A16580C9D", "842E87CD23DCB5BBCA4340F6", "DA06B3B12E52FB69A6A34887", "DEDCCD95A140162B6D654871", "48E2FDCA11A6694953C86E6D", "47693934E8A974162CF08A38", "BE808A0D13A16FE67D32B7FB",);
+			"files" = ("82F1C33CE4F8B8F641FF0461", "40D2920E2C996D62B7190BA4", "16EA630DE1FE9F0A16580C9D", "842E87CD23DCB5BBCA4340F6", "DA06B3B12E52FB69A6A34887", "DEDCCD95A140162B6D654871", "48E2FDCA11A6694953C86E6D", "47693934E8A974162CF08A38", "287044ADBD143F929035BC61", "BE808A0D13A16FE67D32B7FB",);
 			"runOnlyForDeploymentPostprocessing" = 0;
 		};
 		"734C4650C7A5604092763C32" = {
@@ -189,7 +209,7 @@
 		"69816CB820E8173702C54C37" = {
 			"isa" = "PBXResourcesBuildPhase";
 			"buildActionMask" = 2147483647;
-			"files" = ();
+			"files" = ("5522B3B3B2EACC1C8F9BEAAC",);
 			"runOnlyForDeploymentPostprocessing" = 0;
 		};
 		"E3322BA79DBD9A84650B2CAE" = {
@@ -206,8 +226,9 @@
 				"CODE_SIGN_STYLE" = "Automatic";
 				"GENERATE_INFOPLIST_FILE" = "NO";
 				"INFOPLIST_FILE" = "MusicBridge/Info.plist";
-				"CURRENT_PROJECT_VERSION" = "4";
-				"MARKETING_VERSION" = "0.3.0";
+				"CURRENT_PROJECT_VERSION" = "5";
+				"MARKETING_VERSION" = "0.4.0";
+				"ASSETCATALOG_COMPILER_APPICON_NAME" = "AppIcon";
 				"SWIFT_OPTIMIZATION_LEVEL" = "-Onone";
 				"ENABLE_TESTABILITY" = "YES";
 				"SWIFT_ACTIVE_COMPILATION_CONDITIONS" = "DEBUG";
@@ -227,8 +248,9 @@
 				"CODE_SIGN_STYLE" = "Automatic";
 				"GENERATE_INFOPLIST_FILE" = "NO";
 				"INFOPLIST_FILE" = "MusicBridge/Info.plist";
-				"CURRENT_PROJECT_VERSION" = "4";
-				"MARKETING_VERSION" = "0.3.0";
+				"CURRENT_PROJECT_VERSION" = "5";
+				"MARKETING_VERSION" = "0.4.0";
+				"ASSETCATALOG_COMPILER_APPICON_NAME" = "AppIcon";
 				"SWIFT_OPTIMIZATION_LEVEL" = "-O";
 			};
 		};
diff --git a/MusicBridge/Assets.xcassets/AppIcon.appiconset/AppIcon.png b/MusicBridge/Assets.xcassets/AppIcon.appiconset/AppIcon.png
new file mode 100644
index 0000000..fb53efa
Binary files /dev/null and b/MusicBridge/Assets.xcassets/AppIcon.appiconset/AppIcon.png differ
diff --git a/MusicBridge/Assets.xcassets/AppIcon.appiconset/Contents.json b/MusicBridge/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..0a42994
--- /dev/null
+++ b/MusicBridge/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1 @@
+{"images":[{"filename":"AppIcon.png","idiom":"universal","platform":"ios","size":"1024x1024"}],"info":{"author":"xcode","version":1}}
diff --git a/MusicBridge/Assets.xcassets/Contents.json b/MusicBridge/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..f223229
--- /dev/null
+++ b/MusicBridge/Assets.xcassets/Contents.json
@@ -0,0 +1 @@
+{"info":{"author":"xcode","version":1}}
diff --git a/MusicBridge/ContentView.swift b/MusicBridge/ContentView.swift
index 0bf7fb7..d0f8d98 100644
--- a/MusicBridge/ContentView.swift
+++ b/MusicBridge/ContentView.swift
@@ -7,29 +7,47 @@ struct ContentView: View {
     var body: some View {
         NavigationStack {
             ScrollView {
-                VStack(spacing: 24) {
-                    Label(store.status, systemImage: store.connected ? "wifi" : "wifi.slash")
-                        .font(.subheadline).foregroundStyle(.secondary)
+                VStack(spacing: 20) {
+                    HStack(spacing: 8) {
+                        Circle().fill(store.connected ? Color.green : Color.secondary).frame(width: 7, height: 7)
+                        Text(store.status).font(.subheadline).foregroundStyle(.secondary)
+                        Spacer(minLength: 0)
+                    }.accessibilityElement(children: .combine)
                     if store.connection == nil {
                         PairingView(store: store, discovery: store.discovery)
                     } else {
                         PlayerView(store: store)
-                        Text(store.connection?.endpoint.host ?? "")
-                            .font(.caption).foregroundStyle(.secondary)
+
                         if !store.connected && !store.needsPairing {
                             Button("Подключиться снова") { store.resume() }
                         }
-                        Button("Забыть компьютер", role: .destructive) { showForget = true }
-                            .font(.footnote)
+                        if store.needsPairing {
+                            Button("Выполнить сопряжение заново") { showForget = true }
+                                .buttonStyle(.borderedProminent).controlSize(.large)
+                        }
                     }
                     if let error = store.error {
                         Text(error).font(.callout).foregroundStyle(.red).textSelection(.enabled)
                         Button("Скрыть сообщение") { store.error = nil }.font(.footnote)
                     }
-                }.padding(24)
+                }.padding(20)
             }
+            .scrollDismissesKeyboard(.interactively)
             .background(Color(.systemGroupedBackground))
             .navigationTitle("MusicBridge")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                if store.connection != nil {
+                    ToolbarItem(placement: .topBarTrailing) {
+                        Menu {
+                            Text(store.connection?.endpoint.host ?? "Компьютер")
+                            Button("Подключиться снова", systemImage: "arrow.clockwise") { store.resume() }.disabled(store.needsPairing)
+                            Button("Забыть компьютер", systemImage: "trash", role: .destructive) { showForget = true }
+                        } label: { Image(systemName: "desktopcomputer").frame(minWidth: 48, minHeight: 48) }
+                            .accessibilityLabel("Настройки компьютера")
+                    }
+                }
+            }
             .confirmationDialog("Забыть этот компьютер?", isPresented: $showForget, titleVisibility: .visible) {
                 Button("Забыть", role: .destructive) { store.forget() }
             } message: {
@@ -39,6 +57,12 @@ struct ContentView: View {
     }
 }
 
+private extension View {
+    func bridgeCard() -> some View {
+        padding(18).background(Color(.secondarySystemGroupedBackground), in: RoundedRectangle(cornerRadius: 24))
+    }
+}
+
 private struct PairingView: View {
     @ObservedObject var store: PlayerStore
     @ObservedObject var discovery: DiscoveryStore
@@ -47,22 +71,34 @@ private struct PairingView: View {
     @State private var code = ""
     @State private var invitation = ""
     @State private var showScanner = false
+    @State private var showDetails = false
+    @State private var prepared = false
+    @FocusState private var editing: Bool
 
     var body: some View {
         VStack(alignment: .leading, spacing: 18) {
-            Image(systemName: "desktopcomputer.and.arrow.down")
-                .font(.system(size: 48)).foregroundStyle(.indigo)
-                .frame(maxWidth: .infinity).accessibilityHidden(true)
-            Text("Музыка на ПК. Управление здесь.").font(.title2.bold())
-            Text("Откройте сопряжение в MusicBridge на Windows. Подключите iPhone к той же домашней сети.")
-                .foregroundStyle(.secondary)
-            Button { showScanner = true } label: {
-                Label("Сканировать QR с ПК", systemImage: "qrcode.viewfinder")
+            VStack(spacing: 14) {
+            Image(systemName: "waveform.path")
+                .font(.system(size: 40, weight: .medium)).foregroundStyle(.white)
+                .frame(width: 84, height: 84)
+                .background(LinearGradient(colors: [.indigo, .teal], startPoint: .topLeading, endPoint: .bottomTrailing), in: RoundedRectangle(cornerRadius: 25))
+                .accessibilityHidden(true)
+            Text("Ваш ПК. Ваша музыка.").font(.title2.bold()).multilineTextAlignment(.center)
+            Text("Откройте QR в агенте на компьютере. iPhone и ПК должны быть в одной сети.")
+                .font(.subheadline).foregroundStyle(.secondary).multilineTextAlignment(.center)
+            Button { editing = false; showScanner = true } label: {
+                Label("Сканировать QR", systemImage: "qrcode.viewfinder")
                     .frame(maxWidth: .infinity)
             }.buttonStyle(.borderedProminent).controlSize(.large).disabled(store.pairing)
-            Text("QR заполнит адрес, отпечаток и код. Затем нажмите «Подключить компьютер».")
-                .font(.caption).foregroundStyle(.secondary)
-            DisclosureGroup("Найти ПК в сети") {
+            }.frame(maxWidth: .infinity).bridgeCard()
+            if prepared {
+                Label("QR прочитан · данные готовы", systemImage: "checkmark.circle.fill")
+                    .font(.subheadline.weight(.semibold)).foregroundStyle(.teal)
+                Text(endpoint).font(.footnote.monospaced()).textSelection(.enabled)
+                Text("Если приглашение пришло не с экрана вашего ПК, сверьте отпечаток в деталях подключения.")
+                    .font(.caption).foregroundStyle(.secondary)
+            }
+            DisclosureGroup("Найти компьютер") {
                 VStack(alignment: .leading, spacing: 12) {
                     Text(discovery.message).font(.footnote).foregroundStyle(.secondary)
                     ForEach(discovery.computers) { computer in
@@ -70,6 +106,7 @@ private struct PairingView: View {
                             endpoint = computer.endpoint
                             fingerprint = computer.fingerprint
                             code = ""
+                            showDetails = true; prepared = false
                             store.error = nil
                         } label: {
                             VStack(alignment: .leading) {
@@ -85,15 +122,24 @@ private struct PairingView: View {
                         if let url = URL(string: UIApplication.openSettingsURLString) { UIApplication.shared.open(url) }
                     }
                 }.padding(.top, 8)
-            }.disabled(store.pairing)
+            }.bridgeCard().disabled(store.pairing)
+            DisclosureGroup(prepared ? "Детали подключения" : "Подключить вручную", isExpanded: $showDetails) {
+            VStack(alignment: .leading, spacing: 12) {
             Group {
+                Text("Адрес компьютера").font(.subheadline.weight(.medium))
                 TextField("Адрес ПК: https://192.168.1.10:8765", text: $endpoint).keyboardType(.URL)
+                Text("Отпечаток сертификата").font(.subheadline.weight(.medium))
                 TextField("SHA-256 сертификата с экрана ПК", text: $fingerprint, axis: .vertical)
                     .lineLimit(2...4).font(.system(.footnote, design: .monospaced))
+                Text("Код сопряжения").font(.subheadline.weight(.medium))
                 TextField("Восьмизначный код", text: $code).keyboardType(.numberPad)
-            }.textFieldStyle(.roundedBorder).textInputAutocapitalization(.never).autocorrectionDisabled()
+            }.textFieldStyle(.roundedBorder).textInputAutocapitalization(.never).autocorrectionDisabled().focused($editing)
             Text("Сверьте весь отпечаток с экраном ПК перед подключением.").font(.caption).foregroundStyle(.secondary)
+            }.padding(.top, 12)
+            }.bridgeCard().disabled(store.pairing)
+            if prepared || showDetails {
             Button {
+                editing = false
                 Task { await store.pair(endpoint: endpoint.trimmingCharacters(in: .whitespacesAndNewlines),
                                         fingerprint: fingerprint.trimmingCharacters(in: .whitespacesAndNewlines),
                                         code: code.trimmingCharacters(in: .whitespacesAndNewlines)) }
@@ -103,7 +149,8 @@ private struct PairingView: View {
                     Text(store.pairing ? "Сопряжение…" : "Подключить компьютер")
                 }.frame(maxWidth: .infinity)
             }.buttonStyle(.borderedProminent).controlSize(.large).disabled(store.pairing)
-            DisclosureGroup("Импорт строки из QR") {
+            }
+            DisclosureGroup("Вставить приглашение") {
                 VStack(spacing: 12) {
                     TextField("musicbridge://pair?data=…", text: $invitation, axis: .vertical)
                         .lineLimit(3...5).textInputAutocapitalization(.never).autocorrectionDisabled()
@@ -111,7 +158,10 @@ private struct PairingView: View {
                         importText(invitation)
                     }
                 }.padding(.top, 12)
-            }.disabled(store.pairing)
+            }.bridgeCard().disabled(store.pairing)
+        }
+        .toolbar {
+            ToolbarItemGroup(placement: .keyboard) { Spacer(); Button("Готово") { editing = false } }
         }
         .sheet(isPresented: $showScanner) { QRScannerSheet(receive: importText) }
         .onAppear { consumeIncoming() }
@@ -130,6 +180,7 @@ private struct PairingView: View {
             endpoint = parsed.endpoint
             fingerprint = parsed.certificateSha256
             code = parsed.code
+            prepared = true; showDetails = false; editing = false
             store.error = nil
         } catch { store.error = error.localizedDescription }
     }
@@ -137,6 +188,7 @@ private struct PairingView: View {
 
 private struct PlayerView: View {
     @ObservedObject var store: PlayerStore
+    @Environment(\.dynamicTypeSize) private var textSize
     @State private var seekValue = 0.0
     @State private var seeking = false
     @State private var volumeValue = 0.0
@@ -148,10 +200,11 @@ private struct PlayerView: View {
                 if let artwork = store.artwork {
                     Image(uiImage: artwork).resizable().scaledToFit()
                 } else {
-                    RoundedRectangle(cornerRadius: 24).fill(.indigo.opacity(0.12))
-                        .overlay { Image(systemName: "music.note").font(.system(size: 72)).foregroundStyle(.indigo) }
+                    RoundedRectangle(cornerRadius: 28)
+                        .fill(LinearGradient(colors: [.indigo.opacity(0.85), .teal.opacity(0.75)], startPoint: .topLeading, endPoint: .bottomTrailing))
+                        .overlay { Image(systemName: "waveform.path").font(.system(size: 72, weight: .light)).foregroundStyle(.white.opacity(0.9)) }
                 }
-            }.frame(height: 270).clipShape(RoundedRectangle(cornerRadius: 24))
+            }.frame(maxWidth: textSize.isAccessibilitySize ? 210 : 300).aspectRatio(1, contentMode: .fit).clipShape(RoundedRectangle(cornerRadius: 28))
                 .accessibilityLabel("Обложка трека")
             if let error = store.artworkError {
                 Text(error).font(.footnote).foregroundStyle(.secondary)
@@ -178,14 +231,21 @@ private struct PlayerView: View {
                         }.font(.caption.monospacedDigit()).foregroundStyle(.secondary)
                     }
                 }
-                HStack(spacing: 36) {
+                HStack(spacing: 28) {
                     control("previous", icon: "backward.end.fill", label: "Предыдущий трек", enabled: state.capabilities.previous)
                     let playing = state.playbackStatus == "Playing"
                     let command = state.capabilities.toggle ? "toggle" : (playing ? "pause" : "play")
                     control(command, icon: playing ? "pause.circle.fill" : "play.circle.fill", label: playing ? "Пауза" : "Воспроизвести",
-                            enabled: state.capabilities.toggle || (playing ? state.capabilities.pause : state.capabilities.play), size: 64)
+                            enabled: state.capabilities.toggle || (playing ? state.capabilities.pause : state.capabilities.play), size: 78)
                     control("next", icon: "forward.end.fill", label: "Следующий трек", enabled: state.capabilities.next)
                 }
+                VStack(spacing: 8) {
+                HStack {
+                    Text("Громкость ПК").font(.subheadline.weight(.semibold))
+                    Spacer()
+                    Text(state.muted == true ? "Без звука" : state.volume.map { "\(Int((changingVolume ? volumeValue : $0) * 100))%" } ?? "Недоступна")
+                        .font(.caption.monospacedDigit()).foregroundStyle(.secondary)
+                }
                 HStack {
                     control("toggleMute", icon: state.muted == true ? "speaker.slash.fill" : "speaker.wave.2.fill",
                             label: state.muted == true ? "Включить звук ПК" : "Выключить звук ПК", enabled: state.muted != nil, size: 22)
@@ -195,13 +255,19 @@ private struct PlayerView: View {
                         if !editing { Task { await store.send("volume", value: volumeValue) } }
                     }.disabled(state.volume == nil || store.busy).accessibilityLabel("Системная громкость ПК")
                 }
+                }.bridgeCard()
                 ForEach([state.mediaError, state.volumeError, state.artworkError].compactMap { $0 }, id: \.self) {
                     Text($0).font(.caption).foregroundStyle(.secondary)
                 }
             } else {
-                Text("Ожидаем состояние компьютера").foregroundStyle(.secondary)
+                VStack(spacing: 8) {
+                    Text(store.needsPairing ? "Подключите ПК заново" : "Ждём ваш компьютер").font(.title2.bold())
+                    Text("Проверьте, что агент запущен и устройства находятся в одной сети.")
+                        .font(.subheadline).foregroundStyle(.secondary).multilineTextAlignment(.center)
+                }
             }
         }.disabled(!store.connected)
+            .onChange(of: store.connected) { _, _ in seeking = false; changingVolume = false }
     }
 
     private func control(_ type: String, icon: String, label: String, enabled: Bool, size: CGFloat = 28) -> some View {
diff --git a/MusicBridge/MusicBridgeApp.swift b/MusicBridge/MusicBridgeApp.swift
index 8a6c331..75265cf 100644
--- a/MusicBridge/MusicBridgeApp.swift
+++ b/MusicBridge/MusicBridgeApp.swift
@@ -2,15 +2,16 @@ import SwiftUI
 
 @main
 struct MusicBridgeApp: App {
-    @StateObject private var store = PlayerStore()
+    @StateObject private var store = PreviewSupport.makeStore()
     @Environment(\.scenePhase) private var phase
 
     var body: some Scene {
         WindowGroup {
             ContentView(store: store)
+                .dynamicTypeSize(PreviewSupport.largeText ? DynamicTypeSize.accessibility2...DynamicTypeSize.accessibility2 : DynamicTypeSize.xSmall...DynamicTypeSize.accessibility5)
                 .onOpenURL { store.importInvitation($0.absoluteString) }
-                .task { store.setActive(phase == .active) }
-                .onChange(of: phase) { _, value in store.setActive(value == .active) }
+                .task { if !PreviewSupport.enabled { store.setActive(phase == .active) } }
+                .onChange(of: phase) { _, value in if !PreviewSupport.enabled { store.setActive(value == .active) } }
         }
     }
 }
diff --git a/MusicBridge/PreviewSupport.swift b/MusicBridge/PreviewSupport.swift
new file mode 100644
index 0000000..2fe7483
--- /dev/null
+++ b/MusicBridge/PreviewSupport.swift
@@ -0,0 +1,37 @@
+import SwiftUI
+
+// Screenshots only: this fixture and its launch switches do not exist in Release.
+@MainActor
+enum PreviewSupport {
+    static var enabled: Bool {
+        #if DEBUG
+        ProcessInfo.processInfo.arguments.contains("--preview-player")
+        #else
+        false
+        #endif
+    }
+    static var largeText: Bool {
+        #if DEBUG
+        ProcessInfo.processInfo.arguments.contains("--preview-large-text")
+        #else
+        false
+        #endif
+    }
+    static func makeStore() -> PlayerStore {
+        #if DEBUG
+        if enabled {
+            let store = PlayerStore(storage: ConnectionStorage(load: { nil }, save: { _ in }, delete: {}), discoveryEnabled: false)
+            store.connection = try? Connection(endpoint: "https://192.168.1.10:8765", fingerprint: String(repeating: "A", count: 64))
+            store.connected = true
+            store.status = "Предпросмотр интерфейса"
+            store.state = MediaState(protocolVersion: 1, hasSession: true, title: "Ночной город", artist: "MusicBridge · пример плеера", source: "",
+                                     playbackStatus: "Playing", positionSeconds: 42, startSeconds: 0, endSeconds: 214,
+                                     minSeekSeconds: 0, maxSeekSeconds: 214, playbackRate: 1,
+                                     capabilities: Capabilities(play: true, pause: true, toggle: true, next: true, previous: true, seek: true),
+                                     volume: 0.64, muted: false, mediaError: nil, volumeError: nil, artworkId: nil, artworkError: nil)
+            return store
+        }
+        #endif
+        return PlayerStore()
+    }
+}
diff --git a/tools/generate_icon.ps1 b/tools/generate_icon.ps1
new file mode 100644
index 0000000..32c13f7
--- /dev/null
+++ b/tools/generate_icon.ps1
@@ -0,0 +1,25 @@
+# Original vector artwork, rendered to the opaque 1024px asset required by Xcode.
+$ErrorActionPreference = 'Stop'
+Add-Type -AssemblyName System.Drawing
+$iconFolder = Join-Path $PSScriptRoot '..\MusicBridge\Assets.xcassets\AppIcon.appiconset'
+[System.IO.Directory]::CreateDirectory($iconFolder) | Out-Null
+$bitmap = [System.Drawing.Bitmap]::new(1024, 1024, [System.Drawing.Imaging.PixelFormat]::Format24bppRgb)
+$graphics = [System.Drawing.Graphics]::FromImage($bitmap)
+$graphics.SmoothingMode = [System.Drawing.Drawing2D.SmoothingMode]::AntiAlias
+$background = [System.Drawing.Drawing2D.LinearGradientBrush]::new(
+    [System.Drawing.Point]::new(0, 0), [System.Drawing.Point]::new(1024, 1024),
+    [System.Drawing.Color]::FromArgb(59, 43, 164), [System.Drawing.Color]::FromArgb(23, 145, 158))
+$graphics.FillRectangle($background, 0, 0, 1024, 1024)
+$ink = [System.Drawing.SolidBrush]::new([System.Drawing.Color]::White)
+$heights = @(176, 316, 472, 316, 176)
+for ($index = 0; $index -lt 5; $index++) {
+    $barX = 204 + $index * 132
+    $barHeight = $heights[$index]
+    $barY = 512 - $barHeight / 2
+    $graphics.FillRectangle($ink, $barX, $barY + 42, 88, $barHeight - 84)
+    $graphics.FillEllipse($ink, $barX, $barY, 88, 88)
+    $graphics.FillEllipse($ink, $barX, $barY + $barHeight - 88, 88, 88)
+}
+$bitmap.Save((Join-Path $iconFolder 'AppIcon.png'), [System.Drawing.Imaging.ImageFormat]::Png)
+$ink.Dispose(); $background.Dispose(); $graphics.Dispose(); $bitmap.Dispose()
+Write-Output 'Generated original MusicBridge icon: 1024x1024 RGB PNG.'
diff --git a/tools/generate_project.py b/tools/generate_project.py
index 1c1c494..1bef3e1 100644
--- a/tools/generate_project.py
+++ b/tools/generate_project.py
@@ -35,6 +35,9 @@ def source_group(folder):
     return add(folder, "PBXGroup", path=folder, sourceTree="<group>", children=refs), builds
 
 app_group, app_sources = source_group("MusicBridge")
+assets = add("assets", "PBXFileReference", lastKnownFileType="folder.assetcatalog", path="Assets.xcassets", sourceTree="<group>")
+objects[app_group]["children"].append(assets)
+assets_build = add("assets-build", "PBXBuildFile", fileRef=assets)
 test_group, test_sources = source_group("MusicBridgeTests")
 fixture = add("fixture", "PBXFileReference", lastKnownFileType="text.json", path="state-v1.json", sourceTree="<group>")
 objects[test_group]["children"].append(fixture)
@@ -50,7 +53,7 @@ for name, sources, is_test in [("MusicBridge", app_sources, False), ("MusicBridg
     products.append(product)
     phases = [add(name + "sources", "PBXSourcesBuildPhase", buildActionMask=2147483647, files=sources, runOnlyForDeploymentPostprocessing=0),
               add(name + "frameworks", "PBXFrameworksBuildPhase", buildActionMask=2147483647, files=[], runOnlyForDeploymentPostprocessing=0),
-              add(name + "resources", "PBXResourcesBuildPhase", buildActionMask=2147483647, files=[fixture_build, tls_fixture_build] if is_test else [], runOnlyForDeploymentPostprocessing=0)]
+              add(name + "resources", "PBXResourcesBuildPhase", buildActionMask=2147483647, files=[fixture_build, tls_fixture_build] if is_test else [assets_build], runOnlyForDeploymentPostprocessing=0)]
     settings = dict(PRODUCT_NAME="$(TARGET_NAME)", PRODUCT_BUNDLE_IDENTIFIER="ru.yukinoki.musicbridge" + (".tests" if is_test else ""),
                     SWIFT_VERSION="5.0", IPHONEOS_DEPLOYMENT_TARGET="17.0", SDKROOT="iphoneos",
                     SUPPORTED_PLATFORMS="iphoneos iphonesimulator", TARGETED_DEVICE_FAMILY="1", CODE_SIGN_STYLE="Automatic",
@@ -61,7 +64,7 @@ for name, sources, is_test in [("MusicBridge", app_sources, False), ("MusicBridg
         proxy = add("test-proxy", "PBXContainerItemProxy", containerPortal=uid("project"), proxyType=1, remoteGlobalIDString=uid("MusicBridgetarget"), remoteInfo="MusicBridge")
         deps = [add("test-dependency", "PBXTargetDependency", target=uid("MusicBridgetarget"), targetProxy=proxy)]
     else:
-        settings.update(INFOPLIST_FILE="MusicBridge/Info.plist", CURRENT_PROJECT_VERSION="4", MARKETING_VERSION="0.3.0")
+        settings.update(INFOPLIST_FILE="MusicBridge/Info.plist", CURRENT_PROJECT_VERSION="5", MARKETING_VERSION="0.4.0", ASSETCATALOG_COMPILER_APPICON_NAME="AppIcon")
     targets.append(add(name + "target", "PBXNativeTarget", name=name, productName=name, productReference=product,
                        productType="com.apple.product-type.bundle.unit-test" if is_test else "com.apple.product-type.application",
                        buildConfigurationList=configurations(name, settings), buildPhases=phases, buildRules=[], dependencies=deps))