diff --git a/docs/steam.md b/docs/steam.md
index 7a0d859..297a646 100644
--- a/docs/steam.md
+++ b/docs/steam.md
@@ -105,7 +105,7 @@ await window.next2dWindow.quit();
 const off = window.next2dWindow.onResume(() => { /* 状態の再送など */ });
 ```
 
-重ね表示が有効なときは、アプリは**1つだけ**起動します（2つ目の起動はすぐに終了します。macOSではDockにアイコンも出しません）。開発中に複数起動したいときは `--next2d-allow-multiple` を付けて起動します。
+重ね表示が有効なときは、アプリは**1つだけ**起動します（2つ目の起動はすぐに終了します）。macOSではDockにアイコンを出しません（エージェントアプリ。終了はゲーム内のボタンで行います）。開発中に複数起動したいときは `--next2d-allow-multiple` を付けて起動します。
 
 スリープ（ノートPCのふたを閉じる等）から復帰すると、GPUがリセットされて描画が止まることがあるため、画面（renderer）を読み込み直します（ゲームは自動保存を前提にしてください）。電源・ディスプレイ・GPUのイベントは `userData/diagnostics.log`（Windowsは `%APPDATA%\<appId>\diagnostics.log`）に記録されます。
 
@@ -327,7 +327,7 @@ await window.next2dWindow.quit();
 const off = window.next2dWindow.onResume(() => { /* resend state, etc. */ });
 ```
 
-With the overlay enabled the app runs **once**: a second launch quits at once (and, on macOS, never shows a Dock icon). Start with `--next2d-allow-multiple` to run several copies while developing.
+With the overlay enabled the app runs **once**: a second launch quits at once. On macOS it is an agent app with no Dock icon (quit from inside the game). Start with `--next2d-allow-multiple` to run several copies while developing.
 
 After sleep (e.g. closing a laptop lid) the GPU may be reset and drawing stops, so the page (renderer) is loaded again; the game should save automatically. Power, display and GPU events are logged to `userData/diagnostics.log` (Windows: `%APPDATA%\<appId>\diagnostics.log`).
 
diff --git a/package-lock.json b/package-lock.json
index 65ff957..ff1e948 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@next2d/builder",
-  "version": "0.4.6",
+  "version": "0.4.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@next2d/builder",
-      "version": "0.4.6",
+      "version": "0.4.7",
       "license": "MIT",
       "bin": {
         "builder": "dist/index.js"
diff --git a/package.json b/package.json
index 22cbced..193b236 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@next2d/builder",
-  "version": "0.4.6",
+  "version": "0.4.7",
   "description": "Multi-platform builder for Next2d Framework, supporting export to various platforms such as macOS, Windows, iOS, Android and Web(HTML)",
   "author": "Toshiyuki Ienaga <ienaga@next2d.app>",
   "license": "MIT",
diff --git a/src/electron-config.ts b/src/electron-config.ts
index 595692a..5093c85 100644
--- a/src/electron-config.ts
+++ b/src/electron-config.ts
@@ -154,8 +154,7 @@ export const createElectronPackagerOptions = (
         ...os === "macos" && (config.macos.localNetworkUsageDescription || config.window.overlay?.enabled) ? {
             "extendInfo": {
                 ...config.macos.localNetworkUsageDescription ? { "NSLocalNetworkUsageDescription": config.macos.localNetworkUsageDescription } : {},
-                // An overlay starts as an agent app (no Dock icon) so that a second launch, which quits at once,
-                // never shows one. The first instance shows its Dock icon itself (templates/electron/index.js).
+                // An overlay is an agent app: no Dock icon, also for a second launch that quits at once.
                 ...config.window.overlay?.enabled ? { "LSUIElement": true } : {}
             },
             ...config.macos.localNetworkUsageDescription ? {
diff --git a/templates/electron/index.js b/templates/electron/index.js
index 7a03389..f2c03ff 100644
--- a/templates/electron/index.js
+++ b/templates/electron/index.js
@@ -205,9 +205,8 @@ const createWindow = async () => {
 
 app.whenReady().then(async () => {
     if (!hasLock) return;
-    // The overlay app is packaged as an agent app (LSUIElement) so a second launch never shows a Dock icon;
-    // the instance that keeps running shows it.
-    if (process.platform === "darwin" && overlay) app.dock?.show();
+    // The overlay app is packaged as an agent app (LSUIElement): it never shows a Dock icon (a desktop pet stays out
+    // of the Dock and the app switcher; the game offers its own "quit").
     Menu.setApplicationMenu(process.platform === "darwin" ? Menu.buildFromTemplate([
         { role: "appMenu" }, { role: "editMenu" }, { role: "windowMenu" }
     ]) : null);
diff --git a/tests/electron-overlay.test.ts b/tests/electron-overlay.test.ts
index 3f3c75a..ba08357 100644
--- a/tests/electron-overlay.test.ts
+++ b/tests/electron-overlay.test.ts
@@ -236,8 +236,8 @@ test("a desktop overlay runs once: a second launch quits before any window or Do
     const first = await startHost(t, { window: { overlay: { enabled: true, clickThrough: true } } });
     assert.equal(first.windows.length, 1);
     assert.equal(first.calls.some(([name]) => name === "exit"), false);
-    // The running instance shows its Dock icon itself (the app is packaged as an agent app).
-    assert.equal(first.calls.some(([name]) => name === "dock.show"), process.platform === "darwin");
+    // The overlay is an agent app: no instance shows a Dock icon.
+    assert.equal(first.calls.some(([name]) => name === "dock.show"), false);
     assert.equal(denied.calls.some(([name]) => name === "dock.show"), false);
     first.calls.length = 0;
     first.appListeners.get("second-instance")();
diff --git a/tests/electron.test.ts b/tests/electron.test.ts
index 0aa2c75..f1d2368 100644
--- a/tests/electron.test.ts
+++ b/tests/electron.test.ts
@@ -62,7 +62,7 @@ test("macOS local network purpose is opt-in and applied to the app and helpers",
     assert.equal(createElectronPackagerOptions(root, config, "linux", root).extendHelperInfo, undefined);
     fs.writeFileSync(path.join(root, "electron.config.json"), "{}");
     assert.equal(createElectronPackagerOptions(root, readElectronConfig(root), "macos", root).extendInfo, undefined);
-    // An overlay is packaged as an agent app (no Dock icon until the running instance shows it).
+    // An overlay is packaged as an agent app (never a Dock icon).
     fs.writeFileSync(path.join(root, "electron.config.json"), JSON.stringify({ window: { overlay: { enabled: true } } }));
     const overlay = createElectronPackagerOptions(root, readElectronConfig(root), "macos", root);
     assert.deepEqual(overlay.extendInfo, { LSUIElement: true });