If you would like to compile it:
sudo apt install libatk1.0-dev libglib2.0-dev libcairo2-dev libgtk-3-dev libpango1.0-dev libgdk-pixbuf2.0-dev libgee-0.8-dev libglib2.0-dev json-glib-tools libgnome-menu-3-dev libsoup2.4-dev libx11-dev cmake gettext pkg-config gcc make gnome-icon-theme valac-0.26 libjson-glib-dev libpanel-applet-dev libmate-panel-applet-dev
git clone https://github.com/phoenixbyrd/panther_launcher.git
cd panther_launcher
mkdir install
cd install
cmake .. -DCMAKE_INSTALL_PREFIX=/usr
make
sudo make install