Build in support for notifications using the libindicate or libappindicator plugin
Name Category Description
claws-mail mail-client An email client (and news reader) based on GTK+
discord net-im All-in-one voice and text chat for gamers
gammastep x11-misc A screen color temperature adjusting software
guayadeque media-sound Music management program designed for all music enthusiasts
ibus app-i18n Intelligent Input Bus for Linux / Unix OS
lightdm-gtk-greeter x11-misc LightDM GTK+ Greeter
mate-applets-meta mate-base Meta package for MATE panel applets
mate-control-center mate-base The MATE Desktop configuration tool
mate-polkit mate-extra A MATE specific DBUS service that is used to bring up authentication dialogs
nm-applet gnome-extra NetworkManager connection editor and applet
pithos media-sound client for the GNOME desktop
redshift x11-misc A screen color temperature adjusting software
remmina net-misc A GTK+ RDP, SPICE, VNC and SSH client
screenkey x11-misc A screencast tool to display your keys inspired by Screenflick
slack net-im Team collaboration tool
solaar app-misc Linux Device Manager for Logitech Unifying Receivers and Paired Devices
transmission net-p2p A fast, easy, and free BitTorrent client
transmission-remote-gtk net-p2p GTK+ client for management of the Transmission BitTorrent client, over HTTP RPC
uget www-client Download manager using gtk+ and libcurl

Thank you!