Respond to CR.

// FREEBIE

Signal/src/Models/TSMessageAdapaters/TSAnimatedAdapter.m

@@ -7,6 +7,7 @@
 #import "FLAnimatedImage.h"
 #import "JSQMediaItem+OWS.h"
 #import "TSAttachmentStream.h"
+#import "UIColor+OWS.h"
 #import <AssetsLibrary/AssetsLibrary.h>
 #import <JSQMessagesViewController/JSQMessagesMediaViewBubbleImageMasker.h>
 #import <MobileCoreServices/MobileCoreServices.h>
@@ -103,7 +104,9 @@ NS_ASSUME_NONNULL_BEGIN
         NSData *fileData = [NSData dataWithContentsOfURL:[self.attachment mediaURL]];
         if (!fileData) {
             DDLogError(@"%@ Could not load image: %@", [self tag], [self.attachment mediaURL]);
-            return [UIView new];
+            UIView *view = [UIView new];
+            view.backgroundColor = [UIColor colorWithWhite:0.85f alpha:1.f];
+            return view;
         }
         FLAnimatedImage *animatedGif = [FLAnimatedImage animatedImageWithGIFData:fileData];
         FLAnimatedImageView *imageView = [[FLAnimatedImageView alloc] init];

Signal/src/Models/TSMessageAdapaters/TSPhotoAdapter.m

@@ -6,6 +6,7 @@
 #import "AttachmentUploadView.h"
 #import "JSQMediaItem+OWS.h"
 #import "TSAttachmentStream.h"
+#import "UIColor+OWS.h"
 #import <AssetsLibrary/AssetsLibrary.h>
 #import <JSQMessagesViewController/JSQMessagesMediaViewBubbleImageMasker.h>
 #import <MobileCoreServices/MobileCoreServices.h>
@@ -75,7 +76,9 @@ NS_ASSUME_NONNULL_BEGIN
         UIImage *image = self.attachment.image;
         if (!image) {
             DDLogError(@"%@ Could not load image: %@", [self tag], [self.attachment mediaURL]);
-            return [UIView new];
+            UIView *view = [UIView new];
+            view.backgroundColor = [UIColor colorWithWhite:0.85f alpha:1.f];
+            return view;
         }
         CGSize size             = [self mediaViewDisplaySize];
         UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

Signal/src/Models/TSMessageAdapaters/TSVideoAttachmentAdapter.m

@@ -227,7 +227,9 @@ NS_ASSUME_NONNULL_BEGIN
     UIImage *image = self.attachment.image;
     if (!image) {
         DDLogError(@"%@ Could not load image: %@", [self tag], [self.attachment mediaURL]);
-        return [UIView new];
+        UIView *view = [UIView new];
+        view.backgroundColor = [UIColor colorWithWhite:0.85f alpha:1.f];
+        return view;
     }
     UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
     imageView.contentMode = UIViewContentModeScaleAspectFill;