diff --git a/Tusker/AuxiliarySceneDelegate.swift b/Tusker/AuxiliarySceneDelegate.swift
index 32ba48df..25df2b65 100644
--- a/Tusker/AuxiliarySceneDelegate.swift
+++ b/Tusker/AuxiliarySceneDelegate.swift
@@ -56,6 +56,9 @@ class AuxiliarySceneDelegate: UIResponder, UIWindowSceneDelegate {
         window = UIWindow(windowScene: windowScene)
         window!.rootViewController = nav
         window!.makeKeyAndVisible()
+        
+        NotificationCenter.default.addObserver(self, selector: #selector(themePrefChanged), name: .themePreferenceChanged, object: nil)
+        themePrefChanged()
     }
     
     func sceneWillResignActive(_ scene: UIScene) {
@@ -109,4 +112,8 @@ class AuxiliarySceneDelegate: UIResponder, UIWindowSceneDelegate {
     @objc private func close() {
         closeWindow()
     }
+    
+    @objc private func themePrefChanged() {
+        window?.overrideUserInterfaceStyle = Preferences.shared.theme
+    }
 }
diff --git a/Tusker/ComposeSceneDelegate.swift b/Tusker/ComposeSceneDelegate.swift
index f85eb632..3b20561f 100644
--- a/Tusker/ComposeSceneDelegate.swift
+++ b/Tusker/ComposeSceneDelegate.swift
@@ -42,6 +42,9 @@ class ComposeSceneDelegate: UIResponder, UIWindowSceneDelegate {
         window = UIWindow(windowScene: windowScene)
         window!.rootViewController = nav
         window!.makeKeyAndVisible()
+        
+        NotificationCenter.default.addObserver(self, selector: #selector(themePrefChanged), name: .themePreferenceChanged, object: nil)
+        themePrefChanged()
     }
     
     func sceneWillResignActive(_ scene: UIScene) {
@@ -58,6 +61,10 @@ class ComposeSceneDelegate: UIResponder, UIWindowSceneDelegate {
         return scene.userActivity
     }
     
+    @objc private func themePrefChanged() {
+        window?.overrideUserInterfaceStyle = Preferences.shared.theme
+    }
+    
 }
 
 extension ComposeSceneDelegate: ComposeHostingControllerDelegate {