fix(tray): mark tray icons as template for macOS

src-tauri/src/lib.rs

@@ -92,7 +92,7 @@ pub fn run() {
                 .icon(Image::from_path(app.path().resolve(
                     "resources/tray_idle.png",
                     tauri::path::BaseDirectory::Resource,
-                )?)?)
+                )?)?.as_template(true))
                 .menu(&menu)
                 .show_menu_on_left_click(true)
                 .on_menu_event(|app, event| match event.id.as_ref() {

src-tauri/src/utils.rs

@@ -91,7 +91,8 @@ pub fn change_tray_icon(app: &AppHandle, icon: TrayIconState) {
                 .resolve(icon_path, tauri::path::BaseDirectory::Resource)
                 .expect("failed to resolve"),
         )
-        .expect("failed to set icon"),
+        .expect("failed to set icon")
+        .as_template(true),
     ));
 }