Raise a notification if the app should reload and change the theme

PIALibrary/Sources/UI/iOS/Notification+UI.swift

@@ -16,12 +16,15 @@ public extension Notification.Name {
     // MARK: UI
     
     /// Posted following a theme switch.
-    public static let PIAThemeDidChange = Notification.Name("PIAThemeDidChange")
+    static let PIAThemeDidChange = Notification.Name("PIAThemeDidChange")
     
     /// Reload the tiles.
-    public static let PIATilesDidChange = Notification.Name("PIATilesDidChange")
+    static let PIATilesDidChange = Notification.Name("PIATilesDidChange")
     
     /// Present Recover Signup page
-    public static let PIARecoverAccount = Notification.Name("PIARecoverAccount")
+    static let PIARecoverAccount = Notification.Name("PIARecoverAccount")
+
+    /// User toggled the dark mode
+    static let PIAThemeShouldChange = Notification.Name("PIAThemeShouldChange")
 
 }

PIALibrary/Sources/UI/iOS/ViewControllers/AutolayoutViewController.swift

@@ -186,6 +186,16 @@ open class AutolayoutViewController: UIViewController, ModalController, Restylab
 
 }
 
+//MARK: - iOS13 Dark mode
+extension AutolayoutViewController {
+    
+    override open func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
+        super.traitCollectionDidChange(previousTraitCollection)
+        Macros.postNotification(.PIAThemeShouldChange)
+    }
+    
+}
+
 extension AutolayoutViewController: AnimatingLoadingDelegate {
     
     private struct LottieRepos {