$ guake 
Guake not running, starting it
Loading Gnome schema from: /usr/share/glib-2.0/schemas
Language previously loaded from: /usr/share/locale

(guake:6488): Gtk-WARNING **: 10:46:41.783: Theme parsing error: gtk.css:5:58: Failed to import: The resource at “/org/gnome/adwaita/gtk-main.css” does not exist
Gtk-Message: 10:46:41.805: Failed to load module "window-decorations-gtk-module"
Gtk-Message: 10:46:41.805: Failed to load module "colorreload-gtk-module"
Guake Terminal 3.9.0
VTE 0.70.6
Gtk 3.24.37
created fresh notebook for workspace 0
Spawning new terminal at /home/rd
current workspace is 0

** (guake:6488): WARNING **: 10:46:41.945: Binding 'F12' failed!
can't bind show-focus key
Cannot find session.json file
Guake initialized
Calling startup script: xset b off &
Traceback (most recent call last):
  File "/usr/bin/guake", line 33, in <module>
    sys.exit(load_entry_point('guake==3.9.0', 'console_scripts', 'guake')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/guake/main.py", line 648, in exec_main
    if not main():
           ^^^^^^
  File "/usr/lib/python3/dist-packages/guake/main.py", line 630, in main
    pid = subprocess.Popen(  # pylint: disable=consider-using-with
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/subprocess.py", line 1026, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.11/subprocess.py", line 1950, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'xset b off &'