auto-git:

[add] src-tauri/icons/128x128.png
 [add] src-tauri/icons/128x128@2x.png
 [add] src-tauri/icons/32x32.png
 [add] src-tauri/icons/64x64.png
 [add] src-tauri/icons/android/
 [add] src-tauri/icons/icon.icns
 [add] src-tauri/icons/icon.ico
 [add] src-tauri/icons/ios/
 [change] src-tauri/icons/icon.png
 [change] src-tauri/src/lib.rs
 [change] src/App.tsx

src-tauri/icons/android/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+  <background android:drawable="@color/ic_launcher_background"/>
+</adaptive-icon>

src-tauri/icons/android/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="ic_launcher_background">#fff</color>
+</resources>

src-tauri/src/lib.rs

@@ -233,19 +233,25 @@ pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_dialog::init())
         .menu(|handle| {
+            let quit_item =
+                MenuItem::with_id(handle, "app-quit", "Quit", true, Some("CmdOrCtrl+Q"))?;
+            let app_menu = Submenu::with_items(handle, "Concept Maker", true, &[&quit_item])?;
+
             let new_item = MenuItem::with_id(handle, "file-new", "New", true, None::<&str>)?;
             let open_item = MenuItem::with_id(handle, "file-open", "Open", true, None::<&str>)?;
             let save_item = MenuItem::with_id(handle, "file-save", "Save", true, None::<&str>)?;
             let file_menu =
                 Submenu::with_items(handle, "File", true, &[&new_item, &open_item, &save_item])?;
 
-            let open_settings =
-                MenuItem::with_id(handle, "settings-open", "Open Settings", true, None::<&str>)?;
-            let settings_menu = Submenu::with_items(handle, "Settings", true, &[&open_settings])?;
+            let settings_item =
+                MenuItem::with_id(handle, "settings-open", "Settings", true, None::<&str>)?;
 
-            Menu::with_items(handle, &[&file_menu, &settings_menu])
+            Menu::with_items(handle, &[&app_menu, &file_menu, &settings_item])
         })
         .on_menu_event(|app, event| match event.id().as_ref() {
+            "app-quit" => {
+                app.exit(0);
+            }
             "file-new" | "file-open" | "file-save" | "settings-open" => {
                 let _ = app.emit("app-menu-action", event.id().as_ref());
             }