1 files changed, 26 insertions, 0 deletions
diff --git a/Map/MapApp.swift b/Map/MapApp.swift
index 78b0423..b66d715 100644
--- a/Map/MapApp.swift
+++ b/Map/MapApp.swift
@@ -22,6 +22,14 @@ struct MapApp: App {
   private let updaterController: SPUStandardUpdaterController = SPUStandardUpdaterController(
     startingUpdater: true, updaterDelegate: nil, userDriverDelegate: nil)
 
+  @AppStorage("appearanceStyle") private var appearanceStyle: String = UserPreferences.Defaults
+    .appearanceStyle
+
+  init() {
+    // Apply appearance setting at app launch
+    applyAppearanceStyle()
+  }
+
   var body: some Scene {
     DocumentGroup(newDocument: MapDocument(text: nil)) { file in
       MapEditor(document: file.$document, url: file.fileURL)
@@ -37,6 +45,24 @@ struct MapApp: App {
     Settings {
       PreferencesWindow()
     }
+    .onChange(of: appearanceStyle) { _, newValue in
+      applyAppearanceStyle()
+    }
+  }
+
+  private func applyAppearanceStyle() {
+    guard let style = AppearanceStyle(rawValue: appearanceStyle) else { return }
+
+    DispatchQueue.main.async {
+      switch style {
+      case .system:
+        NSApp.appearance = nil
+      case .light:
+        NSApp.appearance = NSAppearance(named: .aqua)
+      case .dark:
+        NSApp.appearance = NSAppearance(named: .darkAqua)
+      }
+    }
   }
 }