Sharpen the app icon.

// FREEBIE

Signal/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -3,7 +3,7 @@
     {
       "size" : "20x20",
       "idiom" : "iphone",
-      "filename" : "resized icon.png",
+      "filename" : "40.png",
       "scale" : "2x"
     },
     {
@@ -57,13 +57,13 @@
     {
       "size" : "20x20",
       "idiom" : "ipad",
-      "filename" : "resized icon-3.png",
+      "filename" : "20.png",
       "scale" : "1x"
     },
     {
       "size" : "20x20",
       "idiom" : "ipad",
-      "filename" : "resized icon-2.png",
+      "filename" : "40-1.png",
       "scale" : "2x"
     },
     {
@@ -81,7 +81,7 @@
     {
       "size" : "40x40",
       "idiom" : "ipad",
-      "filename" : "resized icon-1.png",
+      "filename" : "40-2.png",
       "scale" : "1x"
     },
     {