vim /etc/xdg/xfce4/panel/xfce4-menu-19.rc
use_default_menu=true
menu_file=/etc/xdg/menus/xfce-applications.menu
icon_file=/usr/share/icons/Mist/22x22/status/folder-drag-accept.png
show_menu_icons=true
button_title=Menu
show_button_title=true
vim /etc/xdg/menus/xfce-applications.menu
<Menu>
<Name>Development</Name>
<Directory>xfce-development.directory</Directory>
<Include>
<Category>Development</Category>
</Include>
</Menu>
vim /usr/share/desktop-directories/xfce-development.directory