the default versions of the submenus are located in /usr/share/mxflux/menu

[begin] (MX Fluxbox)
   	[submenu] (Wszystkie aplikacje)
   		[exec] (Wyszukiwanie) {rofi -show drun}
   		[separator]
   		[include] (~/.fluxbox/submenus/full_menu)
        [separator]
        [exec] (Aktualizuj)  {/usr/bin/mxfb-menu-generator}
        [exec] (Wyłączyć) {mx-tweak --other}
   	[end]
    [separator]
    [exec] (Przeglądarka internetowa) {sensible-browser}
    [exec] (Menedżer plików) {exo-open $HOME} 
    [exec] (Pomoc) {mxfb-help}
    [submenu] (Multimedia)
    	[exec] (Odtwarzacz muzyczny) {audacious}
    	[exec] (Komiks internetowy) {bl-xkcd}
        [end]
    [submenu] (Inne)
    	[submenu] (Ostatnie pliki) 
			[include] (~/.fluxbox/submenus/recent_files_menu)
			[separator]
			[exec] (Aktualizuj) {mxfb-recent-files}
		[end]
		[exec] (Zrzut ekranu) {mxfb-quickshot}
		[exec] (Pogoda) {mxfb-simple-weather}
	[end]
    [exec] (Uruchom) {mxfb-rofirun}
    [exec] (Narzędzia MX Fluxbox) {custom-toolbox /etc/custom-toolbox/mxfb-settings.list} 
    [exec] (Terminal) {x-terminal-emulator} 
    [separator]
    [submenu] (Wygląd)
    	[include] (/usr/share/mxflux/menu-translations/appearance_pl)
    [end]
    [submenu] (Ustawienia)
    	[include] (/usr/share/mxflux/menu-translations/settings_pl)
    [end]
    [submenu] (Poza polem widzenia)
        [include] (/usr/share/mxflux/menu-translations/out-of-sight_pl)
    [end]
    [submenu] (Wyjdź)
        [exec] (Odśwież) {fluxbox-remote restart; idesktoggle idesk refresh; nitrogen --restore } 
        [exec] (Wstrzymaj) {sudo 'pm-suspend'}
        [exec] (Blokada) {dm-tool switch-to-greeter}
        [exit] (Wylogowanie) 
        [exec] (Uruchom ponownie) {sudo /sbin/reboot} 
        [exec] (Wyłącz) {sudo poweroff}
    [end]
[end]
