Update "attachment has caption" indicator.

Signal/Images.xcassets/image_editor_caption.imageset/Contents.json

@@ -2,17 +2,17 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "add-caption-32@1x.png",
+      "filename" : "caption-24@1x.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "add-caption-32@2x.png",
+      "filename" : "caption-24@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "add-caption-32@3x.png",
+      "filename" : "caption-24@3x.png",
       "scale" : "3x"
     }
   ],

SignalMessaging/ViewControllers/AttachmentApprovalViewController.swift

@@ -1460,7 +1460,7 @@ class MediaMessageTextToolbar: UIView, UITextViewDelegate {
 
         // Add shadow in case overlayed on white content
         lengthLimitLabel.layer.shadowColor = UIColor.black.cgColor
-        lengthLimitLabel.layer.shadowOffset = CGSize(width: 0.0, height: 0.0)
+        lengthLimitLabel.layer.shadowOffset = .zero
         lengthLimitLabel.layer.shadowOpacity = 0.8
         lengthLimitLabel.isHidden = true
 
@@ -1694,6 +1694,7 @@ public class ApprovalRailCellView: GalleryRailCellView {
         imageView.layer.shadowColor = UIColor.black.cgColor
         imageView.layer.shadowRadius = 2
         imageView.layer.shadowOpacity = 0.66
+        imageView.layer.shadowOffset = .zero
         return imageView
     }()
 
@@ -1725,8 +1726,8 @@ public class ApprovalRailCellView: GalleryRailCellView {
         if hasCaption {
             addSubview(captionIndicator)
 
-            captionIndicator.autoPinEdge(toSuperviewEdge: .top, withInset: 0)
+            captionIndicator.autoPinEdge(toSuperviewEdge: .top, withInset: 2)
-            captionIndicator.autoPinEdge(toSuperviewEdge: .leading, withInset: 4)
+            captionIndicator.autoPinEdge(toSuperviewEdge: .leading, withInset: 6)
         } else {
             captionIndicator.removeFromSuperview()
         }

SignalMessaging/ViewControllers/AttachmentCaptionViewController.swift

@@ -177,7 +177,7 @@ class AttachmentCaptionViewController: OWSViewController {
 
         // Add shadow in case overlayed on white content
         lengthLimitLabel.layer.shadowColor = UIColor.black.cgColor
-        lengthLimitLabel.layer.shadowOffset = CGSize(width: 0.0, height: 0.0)
+        lengthLimitLabel.layer.shadowOffset = .zero
         lengthLimitLabel.layer.shadowOpacity = 0.8
         lengthLimitLabel.isHidden = true
 

SignalMessaging/Views/ImageEditor/ImageEditorPaletteView.swift

@@ -103,8 +103,9 @@ public class ImageEditorPaletteView: UIView {
         imageView.layer.borderColor = UIColor.white.cgColor
         imageView.layer.borderWidth = CGHairlineWidth()
         imageView.layer.shadowColor = UIColor.black.cgColor
-        imageView.layer.shadowOpacity = 2.0
+        imageView.layer.shadowRadius = 2.0
         imageView.layer.shadowOpacity = 0.33
+        imageView.layer.shadowOffset = .zero
         selectionWrapper.layoutCallback = { [weak self] (view) in
             guard let strongSelf = self else {
                 return