It includes some Gtk-libraries compiled before we had Puppy 2.10.
They are installed in an own subfolder to avoid conflicts with the Gtk from Puppy 2.10.
They can be accessed only by a special startscript like the provided xaralx-gtk.
If the startscript cannot find /usr/local/bin/xaralx, it creates a new one, and lets you edit in leafpad the path, where you installed XaraLX.