diff --git a/index.js b/index.js
index 5cf8ac2..c296129 100644
--- a/index.js
+++ b/index.js
@@ -59,18 +59,11 @@ app.on('ready', () => {
       label: 'Menu',
       submenu: [
         {
-          label: 'Quit',
+          label: 'Toggle Menu Bar',
           click: () => {
-            app.quit();
+            win.setMenuBarVisibility(!win.menuBarVisible);
           },
-          accelerator: "CommandOrControl+Q"
-        },
-        {
-          label: 'Toggle Developer Tools',
-          click: () => {
-            win.webContents.toggleDevTools()
-          },
-          accelerator: "F12"
+          accelerator: "CommandOrControl+Shift+M"
         },
         {
           label: 'Reload',
@@ -87,6 +80,13 @@ app.on('ready', () => {
           },
           accelerator: "CommandOrControl+M"
         },
+        {
+          label: 'Toggle Developer Tools',
+          click: () => {
+            win.webContents.toggleDevTools()
+          },
+          accelerator: "F12"
+        },
         {
           label: 'About',
           click: () => {
@@ -107,6 +107,13 @@ app.on('ready', () => {
             require('electron').dialog.showMessageBox(win, options);
           },
           accelerator: "CommandOrControl+I"
+        },
+        {
+          label: 'Quit',
+          click: () => {
+            app.quit();
+          },
+          accelerator: "CommandOrControl+Q"
         }
       ]
     }
diff --git a/package-lock.json b/package-lock.json
index 41ac2db..115a786 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -775,9 +775,9 @@
       }
     },
     "electron": {
-      "version": "11.2.1",
-      "resolved": "https://registry.npmjs.org/electron/-/electron-11.2.1.tgz",
-      "integrity": "sha512-Im1y29Bnil+Nzs+FCTq01J1OtLbs+2ZGLLllaqX/9n5GgpdtDmZhS/++JHBsYZ+4+0n7asO+JKQgJD+CqPClzg==",
+      "version": "11.2.3",
+      "resolved": "https://registry.npmjs.org/electron/-/electron-11.2.3.tgz",
+      "integrity": "sha512-6yxOc42nDAptHKNlUG/vcOh2GI9x2fqp2nQbZO0/3sz2CrwsJkwR3i3oMN9XhVJaqI7GK1vSCJz0verOkWlXcQ==",
       "dev": true,
       "requires": {
         "@electron/get": "^1.0.1",
diff --git a/package.json b/package.json
index c011f1b..859e2d9 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   },
   "homepage": "https://github.com/ocogeclub/ocoge#readme",
   "devDependencies": {
-    "electron": "11.2.1",
+    "electron": "11.2.3",
     "electron-rebuild": "^2.3.4"
   },
   "dependencies": {
diff --git a/scripts/ugj_script.js b/scripts/ugj_script.js
index fd2d4c5..8ac70e5 100644
--- a/scripts/ugj_script.js
+++ b/scripts/ugj_script.js
@@ -536,6 +536,9 @@ if (typeof require == 'function') {
     elec.newFile = () => { ; }
     elec.setWsChanged = () => { ; }
 
+    // マスコット
+    elec.getMascotFilePath = () => './img/cogechee.png';
+
     //ワークスペースのダウンロード
     elec.saveWsFile = xml_text => {
         let blob = new Blob([xml_text], { "type": "text/xml" });