Install guake-indicator by entering the following commands in the terminal:
sudo apt update sudo apt install guake-indicator
Description:
Guake terminal app indicator
Guake indicator lets you send custom commands through the D-Bus System. Commands can be manually edited in a XML file under ~/.guake.indicator or generated through guake-indicator edit-menu system GUI. . Guake-indicator sticks to your "System Tray" and displays your favorites commands retrieved from ~/.guake.indicator/guake-indicator.xml. If guake-indicator.xml does not exist, guake-indicator will create a default configuration file with some examples.
Homepage: http://guake-indicator.ozzyboshi.com
Version: 1.1-2build1
Section: universe/gnome