Added App Icon

SerialGamepad/Assets.xcassets/AppIcon.appiconset/Contents.json

 {
   "images" : [
     {
-      "idiom" : "mac",
       "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "16.png",
       "scale" : "1x"
     },
     {
-      "idiom" : "mac",
       "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "32-1.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "mac",
       "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "32.png",
       "scale" : "1x"
     },
     {
-      "idiom" : "mac",
       "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "64.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "mac",
       "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "128.png",
       "scale" : "1x"
     },
     {
-      "idiom" : "mac",
       "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "256-1.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "mac",
       "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "256.png",
       "scale" : "1x"
     },
     {
-      "idiom" : "mac",
       "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "512-1.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "mac",
       "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "512.png",
       "scale" : "1x"
     },
     {
-      "idiom" : "mac",
       "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "512_2.png",
       "scale" : "2x"
     }
   ],

SerialGamepad/Info.plist

 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>28</string>
+	<string>30</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.utilities</string>
 	<key>LSMinimumSystemVersion</key>