fix(macos/menu): set native image height to 18 (#746)

* fix(macos/menu): set native image height to 18 closes tauri-apps/tauri#7077 * Update menu.rs
tauri-apps · Jun 5, 2023 · 5af3da4 · 5af3da4
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diff --git a/.changes/macos-native-image-menu.md b/.changes/macos-native-image-menu.md
@@ -0,0 +1,5 @@
+---
+"tao": "patch"
+---
+
+On macOS, force `NativeImage` height to be `18` to have consistent size for all icons and match custom icons.
diff --git a/src/platform_impl/macos/menu.rs b/src/platform_impl/macos/menu.rs
@@ -109,9 +109,11 @@ impl MenuItemAttributes {
   // Available only with CustomMenuItemExtMacOS
   pub fn set_native_image(&mut self, icon: NativeImage) {
     unsafe {
-      let ns_image: id = icon.get_ns_image();
-      let image_ref: id = msg_send![class!(NSImage), imageNamed: ns_image];
-      let () = msg_send![self.1, setImage: image_ref];
+      let named_img: id = icon.get_ns_image();
+      let nsimage: id = msg_send![class!(NSImage), imageNamed: named_img];
+      let size = NSSize::new(18.0, 18.0);
+      let _: () = msg_send![nsimage, setSize: size];
+      let _: () = msg_send![self.1, setImage: nsimage];
     }
   }
 }