MSG Desktop/Assets.xcassets/AppStatusBar.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "512@1x.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "512@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "1024.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

MSG Desktop/MSG_DesktopApp.swift

@@ -93,7 +93,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         if let button = statusBarItem.button {
             //button.title = "MSG"
             button.toolTip = "MSG App"
-            if let image = NSImage(named: "AppIcon") {
+            if let image = NSImage(named: "AppStatusBar") {
                 let newSize = NSSize(width: 18, height: 18)
                 image.size = newSize
                 image.isTemplate = true // Important: so it adapts to dark/light mode but we need to get B&W icons..