diff --git a/electron/main/index.ts b/electron/main/index.ts
index a729df8a..00c2dd79 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -71,7 +71,7 @@ async function createWindow() {
   if (VITE_DEV_SERVER_URL) { // #298
     win.loadURL(VITE_DEV_SERVER_URL)
     // Open devTool if the app is not packaged
-    win.webContents.openDevTools()
+    win.webContents.openDevTools({mode:'detach'})
   } else {
     win.loadFile(indexHtml)
   }
diff --git a/src/components/ThemeToggle.vue b/src/components/ThemeToggle.vue
index a694aeb7..ff44da0c 100644
--- a/src/components/ThemeToggle.vue
+++ b/src/components/ThemeToggle.vue
@@ -1,6 +1,6 @@
 <template>
   <button type="button"
-    class="flex items-center justify-between rounded-2xl border border-slate-200/80 bg-white/70 px-4 py-3 text-sm font-medium text-slate-600 shadow-sm transition hover:border-brand/40 hover:bg-white focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-brand/40 dark:border-slate-800/70 dark:bg-slate-900/60 dark:text-slate-300"
+    class="flex items-center justify-between rounded-2xl border border-slate-200/80 bg-white/70 px-4 py-3 text-sm font-medium text-slate-600 shadow-sm transition hover:border-brand/40 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-brand/40 dark:border-slate-800/70 dark:bg-slate-900/60 dark:text-slate-300"
     :aria-pressed="isDark" @click="toggle">
     <span class="flex items-center gap-2">
       <i class="fas" :class="isDark ? 'fa-moon text-amber-200' : 'fa-sun text-amber-400'"></i>
diff --git a/src/demos/ipc.ts b/src/demos/ipc.ts
deleted file mode 100644
index ba4daa0c..00000000
--- a/src/demos/ipc.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-
-window.ipcRenderer.on('main-process-message', (_event, ...args) => {
-  console.log('[Receive Main-process message]:', ...args)
-})
diff --git a/src/demos/node.ts b/src/demos/node.ts
deleted file mode 100644
index 277e6a34..00000000
--- a/src/demos/node.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-import { lstat } from 'node:fs/promises'
-import { cwd } from 'node:process'
-
-lstat(cwd()).then(stats => {
-  console.log('[fs.lstat]', stats)
-}).catch(err => {
-  console.error(err)
-})