gtk-sni-tray-standalone
standalone StatusNotifierItem/AppIndicator tray
RUN apt-get update && \
apt-get install -y haskell-gtk-sni-tray-utils
RUN apt-get update && \
apt-get install -y haskell-gtk-sni-tray-utils
RUN apt-get update && \
apt-get install -y haskell-gtk-sni-tray-utils