$ mate-tweak
Window Manager is: marco-no-composite
System installed layouts:
['fedora', 'default', 'opensuse']
Current layout: opensuse
/usr/bin/mate-tweak:684: PyGTKDeprecationWarning: The "buttons" argument must
be a Gtk.ButtonsType enum value. Please use the "add_buttons" method for adding
buttons. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations
  dialog = Gtk.Dialog(title, None, Gtk.DialogFlags.MODAL |
Gtk.DialogFlags.DESTROY_WITH_PARENT,
/usr/bin/mate-tweak:684: PyGTKDeprecationWarning: The "flags" argument for
dialog construction is deprecated. Please use initializer keywords: modal=True
and/or destroy_with_parent=True. See:
https://wiki.gnome.org/PyGObject/InitializerDeprecations
  dialog = Gtk.Dialog(title, None, Gtk.DialogFlags.MODAL |
Gtk.DialogFlags.DESTROY_WITH_PARENT,
/usr/bin/mate-tweak:690: PyGTKDeprecationWarning: Using positional arguments
with the GObject constructor has been deprecated. Please specify keyword(s) for
"label" or use a class specific constructor. See:
https://wiki.gnome.org/PyGObject/InitializerDeprecations
  label = Gtk.Label(text)
Switching to: fedora
Traceback (most recent call last):
  File "/usr/bin/mate-tweak", line 1047, in combo_fallback
    self.additional_tweaks(schema, key, value[1])
  File "/usr/bin/mate-tweak", line 1031, in additional_tweaks
    self.replace_panel_layout(panel_layout)
  File "/usr/bin/mate-tweak", line 768, in replace_panel_layout
    self.enable_applets()
  File "/usr/bin/mate-tweak", line 571, in enable_applets
    pid = subprocess.Popen(['mate-volume-control-applet'], stdout=DEVNULL,
stderr=DEVNULL).pid
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/subprocess.py", line 1024, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.11/subprocess.py", line 1901, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'mate-volume-control-
applet'
/usr/bin/mate-tweak:684: PyGTKDeprecationWarning: The "buttons" argument must
be a Gtk.ButtonsType enum value. Please use the "add_buttons" method for adding
buttons. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations
  dialog = Gtk.Dialog(title, None, Gtk.DialogFlags.MODAL |
Gtk.DialogFlags.DESTROY_WITH_PARENT,
/usr/bin/mate-tweak:684: PyGTKDeprecationWarning: The "flags" argument for
dialog construction is deprecated. Please use initializer keywords: modal=True
and/or destroy_with_parent=True. See:
https://wiki.gnome.org/PyGObject/InitializerDeprecations
  dialog = Gtk.Dialog(title, None, Gtk.DialogFlags.MODAL |
Gtk.DialogFlags.DESTROY_WITH_PARENT,
/usr/bin/mate-tweak:690: PyGTKDeprecationWarning: Using positional arguments
with the GObject constructor has been deprecated. Please specify keyword(s) for
"label" or use a class specific constructor. See:
https://wiki.gnome.org/PyGObject/InitializerDeprecations
  label = Gtk.Label(text)
Switching to: default
Traceback (most recent call last):
  File "/usr/bin/mate-tweak", line 1047, in combo_fallback
    self.additional_tweaks(schema, key, value[1])
  File "/usr/bin/mate-tweak", line 1031, in additional_tweaks
    self.replace_panel_layout(panel_layout)
  File "/usr/bin/mate-tweak", line 768, in replace_panel_layout
    self.enable_applets()
  File "/usr/bin/mate-tweak", line 571, in enable_applets
    pid = subprocess.Popen(['mate-volume-control-applet'], stdout=DEVNULL,
stderr=DEVNULL).pid
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/subprocess.py", line 1024, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.11/subprocess.py", line 1901, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'mate-volume-control-
applet'
/usr/bin/mate-tweak:684: PyGTKDeprecationWarning: The "buttons" argument must
be a Gtk.ButtonsType enum value. Please use the "add_buttons" method for adding
buttons. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations
  dialog = Gtk.Dialog(title, None, Gtk.DialogFlags.MODAL |
Gtk.DialogFlags.DESTROY_WITH_PARENT,
/usr/bin/mate-tweak:684: PyGTKDeprecationWarning: The "flags" argument for
dialog construction is deprecated. Please use initializer keywords: modal=True
and/or destroy_with_parent=True. See:
https://wiki.gnome.org/PyGObject/InitializerDeprecations
  dialog = Gtk.Dialog(title, None, Gtk.DialogFlags.MODAL |
Gtk.DialogFlags.DESTROY_WITH_PARENT,
/usr/bin/mate-tweak:690: PyGTKDeprecationWarning: Using positional arguments
with the GObject constructor has been deprecated. Please specify keyword(s) for
"label" or use a class specific constructor. See:
https://wiki.gnome.org/PyGObject/InitializerDeprecations
  label = Gtk.Label(text)
Switching to: opensuse
Traceback (most recent call last):
  File "/usr/bin/mate-tweak", line 1047, in combo_fallback
    self.additional_tweaks(schema, key, value[1])
  File "/usr/bin/mate-tweak", line 1031, in additional_tweaks
    self.replace_panel_layout(panel_layout)
  File "/usr/bin/mate-tweak", line 768, in replace_panel_layout
    self.enable_applets()
  File "/usr/bin/mate-tweak", line 571, in enable_applets
    pid = subprocess.Popen(['mate-volume-control-applet'], stdout=DEVNULL,
stderr=DEVNULL).pid
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/subprocess.py", line 1024, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.11/subprocess.py", line 1901, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'mate-volume-control-
applet'