diff --git a/scripts/menu.py b/scripts/menu.py
index 10a5e3b..3af5f47 100755
--- a/scripts/menu.py
+++ b/scripts/menu.py
@@ -19,21 +19,21 @@ gi.require_version('Gtk', '3.0')
 from gi.repository import Gtk, Gdk
 
 def read_desktop_files(paths):
-    desktop_entries = []
+    desktopEntries = []
     for path in paths:
         for file in Path(path).rglob('*.desktop'):
             config = configparser.ConfigParser(interpolation=None)
             config.read(file)
-            desktop_entries.append(config)
-    return desktop_entries
+            desktopEntries.append(config)
+    return desktopEntries
 
-user_applications_path = Path.home() / '.local/share/applications'
-system_applications_path = Path('/usr/share/applications')
+userApplicationsPath = Path.home() / '.local/share/applications'
+systemApplicationsPath = Path('/usr/share/applications')
 
-desktop_entries = read_desktop_files([user_applications_path, system_applications_path])
+desktopEntries = read_desktop_files([userApplicationsPath, systemApplicationsPath])
 
 # Combine some of the categories
-category_map = {
+categoryMap = {
     "2DGraphics": "Office",
     "Accessibility": "Settings",
     "Audio": "Audio and Video",
@@ -85,16 +85,16 @@ category_map = {
 }
 
 categories = defaultdict(set)
-for entry in desktop_entries:
+for entry in desktopEntries:
     try:
-        entry_categories = entry.get('Desktop Entry', 'Categories').split(';')
-        for category in entry_categories:
-            combined_category = category_map.get(category, category)
+        entryCategories = entry.get('Desktop Entry', 'Categories').split(';')
+        for category in entryCategories:
+            combinedCategory = categoryMap.get(category, category)
             name = entry.get('Desktop Entry', 'Name')
-            exec_command = entry.get('Desktop Entry', 'Exec')
-            # Use a tuple of name and exec_command as a unique identifier
-            if (name, exec_command) not in categories[combined_category]:
-                categories[combined_category].add((name, exec_command))
+            execCommand = entry.get('Desktop Entry', 'Exec')
+            # Use a tuple of name and execCommand as a unique identifier
+            if (name, execCommand) not in categories[combinedCategory]:
+                categories[combinedCategory].add((name, execCommand))
     except configparser.NoOptionError:
         continue
 
@@ -106,15 +106,15 @@ class Xdg_Menu_Window(Gtk.Window):
 
         self.store = Gtk.TreeStore(str, str)  # Columns: Category/Application Name, Exec Command
 
-        sorted_categories = sorted(categories.items())  # Sort categories alphabetically
+        sortedCategories = sorted(categories.items())  # Sort categories alphabetically
 
-        for category, entries in sorted_categories:
+        for category, entries in sortedCategories:
             if category == "":
                 continue
-            category_iter = self.store.append(parent=None, row=[category, None])
-            sorted_entries = sorted(entries, key=lambda e: e[0])  # Sort entries by name
-            for name, exec_command in sorted_entries:
-                self.store.append(parent=category_iter, row=[name, exec_command])
+            categoryIter = self.store.append(parent=None, row=[category, None])
+            sortedEntries = sorted(entries, key=lambda e: e[0])  # Sort entries by name
+            for name, execCommand in sortedEntries:
+                self.store.append(parent=categoryIter, row=[name, execCommand])
 
         self.treeview = Gtk.TreeView(model=self.store)
         renderer = Gtk.CellRendererText()
@@ -135,9 +135,9 @@ class Xdg_Menu_Window(Gtk.Window):
     def on_row_activated(self, treeview, path, column):
         model = treeview.get_model()
         iter = model.get_iter(path)
-        exec_command = model.get_value(iter, 1)
-        if exec_command:
-            os.system(exec_command)
+        execCommand = model.get_value(iter, 1)
+        if execCommand:
+            os.system(execCommand)
 
     def on_focus_out(self, widget, event):
         Gtk.main_quit()
@@ -147,7 +147,7 @@ class Xdg_Menu_Window(Gtk.Window):
         state = event.state
         if keyval == Gdk.KEY_Escape:
             Gtk.main_quit()
-        elif state & Gdk.ModifierType.SHIFT_MASK and keyval == Gdk.KEY_Left:
+        elif keyval == Gdk.KEY_Left:
             path = self.treeview.get_cursor()[0]
             if path:
                 iter = self.store.get_iter(path)
@@ -160,6 +160,11 @@ class Xdg_Menu_Window(Gtk.Window):
                         self.treeview.collapse_row(parent_path)
                     else:
                         self.treeview.collapse_row(path)
+        elif keyval == Gdk.KEY_Right:
+            path = self.treeview.get_cursor()[0]
+            if path:
+                if not self.treeview.row_expanded(path):
+                    self.treeview.expand_row(path, open_all=False)
 
 win = Xdg_Menu_Window()
 win.connect("destroy", Gtk.main_quit)