default value

Signal/src/ViewControllers/MessageDetailViewController.swift

@@ -149,7 +149,6 @@ class MessageDetailViewController: OWSViewController, MediaGalleryDataSourceDele
 
         if hasMediaAttachment {
             let footer = UIToolbar()
-            footer.barTintColor = UIColor.ows_materialBlue
             view.addSubview(footer)
             footer.autoPinWidthToSuperview(withMargin: 0)
             footer.autoPinEdge(.top, to: .bottom, of: scrollView)

SignalMessaging/Views/OWSNavigationBar.swift

@@ -41,9 +41,6 @@ public class OWSNavigationBar: UINavigationBar {
     override init(frame: CGRect) {
         super.init(frame: frame)
 
-        self.isOpaque = false
-        self.isTranslucent = true
-
         NotificationCenter.default.addObserver(self, selector: #selector(callDidChange), name: .OWSWindowManagerCallDidChange, object: nil)
         NotificationCenter.default.addObserver(self, selector: #selector(didChangeStatusBarFrame), name: .UIApplicationDidChangeStatusBarFrame, object: nil)
     }