On iOS11 doc picker requires system appearance.

Otherwise nav items are illegible.

// FREEBIE

Signal/src/ViewControllers/ConversationView/MessagesViewController.m

@@ -653,7 +653,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
 
     [super viewWillAppear:animated];
 
-    // In case we're dismissing a CNContactViewController which requires default system appearance
+    // In case we're dismissing a CNContactViewController, or DocumentPicker which requires default system appearance
     [UIUtil applySignalAppearence];
 
     [self addVisibleListeners];
@@ -3073,7 +3073,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
 
 #pragma mark - Attachment Picking: Documents
 
-- (void)showAttachmentDocumentPicker
+- (void)showAttachmentDocumentPickerMenu
 {
     NSString *allItems = (__bridge NSString *)kUTTypeItem;
     NSArray<NSString *> *documentTypes = @[ allItems ];
@@ -3083,6 +3083,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
     UIDocumentMenuViewController *menuController =
         [[UIDocumentMenuViewController alloc] initWithDocumentTypes:documentTypes inMode:pickerMode];
     menuController.delegate = self;
+
     [self presentViewController:menuController animated:YES completion:nil];
 }
 
@@ -3092,6 +3093,10 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
     didPickDocumentPicker:(UIDocumentPickerViewController *)documentPicker
 {
     documentPicker.delegate = self;
+    if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(11, 0)) {
+        // post iOS11, document picker has no blue header.
+        [UIUtil applyDefaultSystemAppearence];
+    }
     [self presentViewController:documentPicker animated:YES completion:nil];
 }
 
@@ -3102,6 +3107,11 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
     DDLogDebug(@"%@ Picked document at url: %@", self.tag, url);
     NSData *attachmentData = [NSData dataWithContentsOfURL:url];
 
+    if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(11, 0)) {
+        // post iOS11, document picker has no blue header.
+        [UIUtil applySignalAppearence];
+    }
+
     NSString *type;
     NSError *typeError;
     [url getResourceValue:&type forKey:NSURLTypeIdentifierKey error:&typeError];
@@ -3914,7 +3924,7 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
                                            @"action sheet button title when choosing attachment type")
                                  style:UIAlertActionStyleDefault
                                handler:^(UIAlertAction *_Nonnull action) {
-                                   [self showAttachmentDocumentPicker];
+                                   [self showAttachmentDocumentPickerMenu];
                                }];
     UIImage *chooseDocumentImage = [UIImage imageNamed:@"actionsheet_document_black"];
     OWSAssert(chooseDocumentImage);

SignalServiceKit/src/Contacts/Contact.m

@@ -80,7 +80,6 @@ NS_ASSUME_NONNULL_BEGIN
             } else if ([phoneNumberField.label isEqualToString:CNLabelPhoneNumberiPhone]) {
                 phoneNumberNameMap[phoneNumber.stringValue]
                     = NSLocalizedString(@"PHONE_NUMBER_TYPE_IPHONE", @"Label for 'IPhone' phone numbers.");
-                ;
             } else if ([phoneNumberField.label isEqualToString:CNLabelPhoneNumberMobile]) {
                 phoneNumberNameMap[phoneNumber.stringValue]
                     = NSLocalizedString(@"PHONE_NUMBER_TYPE_MOBILE", @"Label for 'Mobile' phone numbers.");