diff --git a/__pycache__/cfd_ui_setup.cpython-312.pyc b/__pycache__/cfd_ui_setup.cpython-312.pyc
index 887b632..704f294 100644
Binary files a/__pycache__/cfd_ui_setup.cpython-312.pyc and b/__pycache__/cfd_ui_setup.cpython-312.pyc differ
diff --git a/cfd_ui_setup.py b/cfd_ui_setup.py
index 9b97002..7e7ca56 100644
--- a/cfd_ui_setup.py
+++ b/cfd_ui_setup.py
@@ -122,9 +122,11 @@ class WidgetManager:
         main_frame.grid_columnconfigure(0, weight=1)
 
         # Top bar for navigation and path
-        top_bar = ttk.Frame(main_frame, style='Accent.TFrame', padding=(0, 5, 0, 5))
+        top_bar = ttk.Frame(
+            main_frame, style='Accent.TFrame', padding=(0, 5, 0, 5))
         top_bar.grid(row=0, column=0, columnspan=2, sticky="ew")
-        top_bar.grid_columnconfigure(2, weight=1) # Make path entry column expandable
+        # Make path entry column expandable
+        top_bar.grid_columnconfigure(2, weight=1)
 
         # Left navigation buttons
         left_nav_container = ttk.Frame(top_bar, style='Accent.TFrame')
@@ -159,13 +161,14 @@ class WidgetManager:
             self.recursive_button = ttk.Button(search_container_left, image=self.dialog.icon_manager.get_icon(
                 'recursive_small'), command=self.dialog.toggle_recursive_search, style="Header.TButton.Active.Round")
             self.recursive_button.pack(side="left", padx=2)
-            self.recursive_button.pack_forget() # Initially hidden
+            self.recursive_button.pack_forget()  # Initially hidden
             Tooltip(self.recursive_button, "Rekursive Suche ein/ausschalten")
 
         # Path entry
         self.path_entry = ttk.Entry(top_bar)
         self.path_entry.grid(row=0, column=2, sticky="ew")
-        self.path_entry.bind("<Return>", lambda e: self.dialog.navigate_to(self.path_entry.get()))
+        self.path_entry.bind(
+            "<Return>", lambda e: self.dialog.navigate_to(self.path_entry.get()))
 
         # Right-side controls
         right_controls_container = ttk.Frame(top_bar, style='Accent.TFrame')
@@ -173,7 +176,8 @@ class WidgetManager:
 
         # Search button (right position)
         if search_icon_pos == 'right':
-            search_container_right = ttk.Frame(right_controls_container, style='Accent.TFrame')
+            search_container_right = ttk.Frame(
+                right_controls_container, style='Accent.TFrame')
             search_container_right.pack(side="left", padx=5)
             self.search_button = ttk.Button(search_container_right, image=self.dialog.icon_manager.get_icon(
                 'search_small'), command=self.dialog.toggle_search_mode, style="Header.TButton.Borderless.Round")
@@ -184,7 +188,7 @@ class WidgetManager:
             self.recursive_button = ttk.Button(search_container_right, image=self.dialog.icon_manager.get_icon(
                 'recursive_small'), command=self.dialog.toggle_recursive_search, style="Header.TButton.Active.Round")
             self.recursive_button.pack(side="left", padx=2)
-            self.recursive_button.pack_forget() # Initially hidden
+            self.recursive_button.pack_forget()  # Initially hidden
             Tooltip(self.recursive_button, "Rekursive Suche ein/ausschalten")
 
         # Other right-side buttons
@@ -198,7 +202,8 @@ class WidgetManager:
         self.new_file_button.pack(side="left", padx=5)
         Tooltip(self.new_file_button, "Neues Dokument erstellen")
 
-        view_switch = ttk.Frame(right_controls_container, padding=(5, 0), style='Accent.TFrame')
+        view_switch = ttk.Frame(right_controls_container,
+                                padding=(5, 0), style='Accent.TFrame')
         view_switch.pack(side="left")
 
         self.icon_view_button = ttk.Button(view_switch, image=self.dialog.icon_manager.get_icon(
@@ -382,55 +387,77 @@ class WidgetManager:
         action_buttons_col = 0 if button_box_pos == 'left' else 2
         action_buttons_sticky = "w" if button_box_pos == 'left' else "e"
 
-        action_buttons_frame = ttk.Frame(bottom_controls_frame, style="AccentBottom.TFrame")
-        action_buttons_frame.grid(row=0, column=action_buttons_col, rowspan=2, sticky="nsew", pady=(5, 10))
+        action_buttons_frame = ttk.Frame(
+            bottom_controls_frame, style="AccentBottom.TFrame")
+        action_buttons_frame.grid(
+            row=0, column=action_buttons_col, rowspan=2, sticky="nsew", pady=(5, 10))
 
-        self.status_bar = ttk.Label(bottom_controls_frame, text="", anchor="w", style="AccentBottom.TLabel")
+        self.status_bar = ttk.Label(
+            bottom_controls_frame, text="", anchor="w", style="AccentBottom.TLabel")
         status_bar_col = 1 if button_box_pos == 'left' else 1
         status_bar_sticky = "w" if button_box_pos == 'left' else "e"
-        self.status_bar.grid(row=0, column=status_bar_col, sticky=status_bar_sticky, padx=10)
+        self.status_bar.grid(row=0, column=status_bar_col,
+                             sticky=status_bar_sticky, padx=10)
 
         self.settings_button = ttk.Button(bottom_controls_frame, image=self.dialog.icon_manager.get_icon(
             'settings-2_small'), command=self.dialog.open_settings_dialog, style="Bottom.TButton.Borderless.Round")
-        self.settings_button.grid(row=0, column=3, sticky="ne", padx=(0, 10), pady=(5,0))
+        self.settings_button.grid(
+            row=0, column=3, sticky="ne", padx=(0, 10), pady=(5, 0))
         Tooltip(self.settings_button, "Einstellungen")
 
         if self.dialog.dialog_mode == "save":
             self.filename_entry = ttk.Entry(action_buttons_frame)
-            save_button = ttk.Button(action_buttons_frame, text="Speichern", command=self.dialog.on_save)
-            cancel_button = ttk.Button(action_buttons_frame, text="Abbrechen", command=self.dialog.on_cancel)
-            self.filter_combobox = ttk.Combobox(action_buttons_frame, values=[ft[0] for ft in self.dialog.filetypes], state="readonly")
+            save_button = ttk.Button(
+                action_buttons_frame, text="Speichern", command=self.dialog.on_save)
+            cancel_button = ttk.Button(
+                action_buttons_frame, text="Abbrechen", command=self.dialog.on_cancel)
+            self.filter_combobox = ttk.Combobox(action_buttons_frame, values=[
+                                                ft[0] for ft in self.dialog.filetypes], state="readonly")
 
             if button_box_pos == 'left':
                 action_buttons_frame.grid_columnconfigure(0, weight=1)
-                self.filename_entry.grid(row=0, column=0, sticky="ew", padx=(10,5))
-                save_button.grid(row=0, column=1, sticky="e", padx=(0,10))
-                cancel_button.grid(row=1, column=0, sticky="w", padx=(10,5), pady=(5,0))
-                self.filter_combobox.grid(row=1, column=1, sticky="w", padx=(0,10), pady=(5,0))
-            else: # right
+                self.filename_entry.grid(
+                    row=0, column=0, sticky="ew", padx=(10, 5))
+                save_button.grid(row=0, column=1, sticky="e", padx=(0, 10))
+                cancel_button.grid(row=1, column=0, sticky="w",
+                                   padx=(10, 5), pady=(5, 0))
+                self.filter_combobox.grid(
+                    row=1, column=1, sticky="w", padx=(0, 10), pady=(5, 0))
+            else:  # right
                 action_buttons_frame.grid_columnconfigure(1, weight=1)
-                save_button.grid(row=0, column=0, sticky="w", padx=(10,5))
-                self.filename_entry.grid(row=0, column=1, sticky="ew", padx=(0,10))
-                self.filter_combobox.grid(row=1, column=0, sticky="e", padx=(10,5), pady=(5,0))
-                cancel_button.grid(row=1, column=1, sticky="e", padx=(0,10), pady=(5,0))
+                save_button.grid(row=0, column=0, sticky="w", padx=(10, 5))
+                self.filename_entry.grid(
+                    row=0, column=1, sticky="ew", padx=(0, 10))
+                self.filter_combobox.grid(
+                    row=1, column=0, sticky="e", padx=(10, 5), pady=(5, 0))
+                cancel_button.grid(row=1, column=1, sticky="e",
+                                   padx=(0, 10), pady=(5, 0))
 
-            self.filter_combobox.bind("<<ComboboxSelected>>", self.dialog.on_filter_change)
+            self.filter_combobox.bind(
+                "<<ComboboxSelected>>", self.dialog.on_filter_change)
             self.filter_combobox.set(self.dialog.filetypes[0][0])
 
         else:  # Open mode
-            open_button = ttk.Button(action_buttons_frame, text="Öffnen", command=self.dialog.on_open)
-            cancel_button = ttk.Button(action_buttons_frame, text="Abbrechen", command=self.dialog.on_cancel)
-            self.filter_combobox = ttk.Combobox(action_buttons_frame, values=[ft[0] for ft in self.dialog.filetypes], state="readonly")
+            open_button = ttk.Button(
+                action_buttons_frame, text="Öffnen", command=self.dialog.on_open)
+            cancel_button = ttk.Button(
+                action_buttons_frame, text="Abbrechen", command=self.dialog.on_cancel)
+            self.filter_combobox = ttk.Combobox(action_buttons_frame, values=[
+                                                ft[0] for ft in self.dialog.filetypes], state="readonly")
 
             if button_box_pos == 'left':
-                open_button.grid(row=0, column=0, sticky="w", padx=(10,5))
-                cancel_button.grid(row=1, column=0, sticky="w", padx=(10,5), pady=(5,0))
-                self.filter_combobox.grid(row=1, column=1, sticky="w", padx=(0,10), pady=(5,0))
-            else: # right
-                open_button.grid(row=0, column=1, sticky="e", padx=(10,5))
-                cancel_button.grid(row=1, column=1, sticky="e", padx=(0,10), pady=(5,0))
-                self.filter_combobox.grid(row=1, column=0, sticky="e", padx=(10,5), pady=(5,0))
+                open_button.grid(row=0, column=0, sticky="w", padx=(10, 5))
+                cancel_button.grid(row=1, column=0, sticky="w",
+                                   padx=(10, 5), pady=(5, 0))
+                self.filter_combobox.grid(
+                    row=1, column=1, sticky="w", padx=(0, 10), pady=(5, 0))
+            else:  # right
+                open_button.grid(row=0, column=1, sticky="e", padx=(10, 5))
+                cancel_button.grid(row=1, column=1, sticky="e",
+                                   padx=(10, 5), pady=(5, 0))
+                self.filter_combobox.grid(
+                    row=1, column=0, sticky="w", padx=(0, 0), pady=(5, 0))
 
-            self.filter_combobox.bind("<<ComboboxSelected>>", self.dialog.on_filter_change)
+            self.filter_combobox.bind(
+                "<<ComboboxSelected>>", self.dialog.on_filter_change)
             self.filter_combobox.set(self.dialog.filetypes[0][0])
-