Install libghc-gtk-traymanager-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-gtk-traymanager-dev
Description:
bindings for eggtraymanager (GTK+)
This package provides a wrapper around the prolific eggtraymanager code. Note that it is *NOT* itself a system tray widget, though it is a very convenient utility for implementing one. . This package adopts the style of gtk2hs and is designed to work well with it. . This package provides a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://github.com/travitch/gtk-traymanager
Version: 0.1.6-3build4
Section: universe/haskell