diff --git a/__pycache__/cfd_app_config.cpython-312.pyc b/__pycache__/cfd_app_config.cpython-312.pyc
new file mode 100644
index 0000000..a9be0d2
Binary files /dev/null and b/__pycache__/cfd_app_config.cpython-312.pyc differ
diff --git a/__pycache__/cfd_ui_setup.cpython-312.pyc b/__pycache__/cfd_ui_setup.cpython-312.pyc
new file mode 100644
index 0000000..4188522
Binary files /dev/null and b/__pycache__/cfd_ui_setup.cpython-312.pyc differ
diff --git a/__pycache__/custom_file_dialog.cpython-312.pyc b/__pycache__/custom_file_dialog.cpython-312.pyc
new file mode 100644
index 0000000..c579d4b
Binary files /dev/null and b/__pycache__/custom_file_dialog.cpython-312.pyc differ
diff --git a/cfd_ui_setup.py b/cfd_ui_setup.py
index 7e7ca56..7a3c7d5 100644
--- a/cfd_ui_setup.py
+++ b/cfd_ui_setup.py
@@ -406,6 +406,7 @@ class WidgetManager:
         Tooltip(self.settings_button, "Einstellungen")
 
         if self.dialog.dialog_mode == "save":
+            action_buttons_frame.grid_columnconfigure(0, weight=1)
             self.filename_entry = ttk.Entry(action_buttons_frame)
             save_button = ttk.Button(
                 action_buttons_frame, text="Speichern", command=self.dialog.on_save)
@@ -415,7 +416,6 @@ class WidgetManager:
                                                 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))
diff --git a/mainwindow.py b/mainwindow.py
index 3368df5..c7d103a 100755
--- a/mainwindow.py
+++ b/mainwindow.py
@@ -55,7 +55,7 @@ if __name__ == "__main__":
     style = ttk.Style(root)
     root.tk.call('source', f"{theme_path}/water.tcl")
     try:
-        root.tk.call('set_theme', 'light')
+        root.tk.call('set_theme', 'dark')
     except tk.TclError:
         pass
     root.mainloop()