fix nav bar bg

@@ -6,6 +6,7 @@
 //
 
 import UIKit
+import SwiftEventBus
 
 @objc public class LoyaltyAnalysisViewController: UIViewController {
     

@@ -45,6 +45,7 @@ extension UIViewController {
         self.navigationItem.title = ""
 
         // Add backgroundColor
+        if #available(iOS 15, *) {
             let navigationBarAppearance = UINavigationBarAppearance()
             navigationBarAppearance.configureWithDefaultBackground()
             navigationBarAppearance.backgroundColor = .white
@@ -52,6 +53,11 @@ extension UIViewController {
             navigationItem.standardAppearance = navigationBarAppearance
             navigationItem.compactAppearance = navigationBarAppearance
             navigationItem.scrollEdgeAppearance = navigationBarAppearance
+        } else {
+            navigationController?.navigationBar.barTintColor = UIColor.white
+            navigationController?.navigationBar.tintColor = UIColor.white
+        //     navigationController?.navigationBar.isTranslucent = false
+        }
     }