You'll need the following dependencies to build :
sudo apt-get install gobject-introspection libglib2.0-dev libgranite-dev libindicator3-dev sudo apt-get install libwingpanel-2.0-dev valac gcc gtk+-3.0 mesonOpen a Terminal in the extracted folder, build your application with meson and install it with ninja:
meson build --prefix=/usr cd build ninja sudo ninja installOpen a terminal in the build folder.
sudo ninja uninstall killall wingpanel