https://github.com/mate-desktop/mate-applets
This package contains applets for use with the MATE panel. Therefore, it requires mate-panel to be installed. To build all applets additional libraries may be needed.
This list is by no means definitive.
MATE-Applets is a fork of GNOME-Applets.
You need at least:
mate-panel
gtk+-3.14.0
glib-2.36.0
libgtop-2.12.0
libwnck
Some extras that improve functionality:
libnotify
dbus-0.34
Bugs should be reported via GitHub https://github.com/mate-desktop/mate-applets/issues/