Install vala-panel-appmenu by entering the following commands in the terminal:
sudo apt update sudo apt install vala-panel-appmenu
Description:
Application Menu plugin for vala-panel
This is an Application Menu (Global Menu) plugin. It is built using the Unity protocol and libraries and provides all features found in the Unity implementation.
Homepage: https://github.com/rilian-la-te/vala-panel-appmenu
Version: 0.6.94+repack1-1
Section: universe/x11