Install stalonetray by entering the following commands in the terminal:
sudo apt update sudo apt install stalonetray
Description:
Standalone freedesktop.org and KDE systray implementation
stalonetray is an implementation of system tray application (aka notificaton area) according to freedesktop.org specification; support for KDE icons included. . stalonetray is a stand-alone system tray (notification area) for X Window System/X11 (e.g. X.Org or XFree 86). It has full XEMBED support and minimal dependencies: an X11 lib only. Stalonetray works with virtually any EWMH-compliant window manager. . Window managers that are reported to work well with stalonetray: - FVWM - OpenBox - Enlightenment - ion3
Homepage: http://stalonetray.sourceforge.net/
Version: 0.8.1-1build1
Section: universe/x11