labyrinth binary package in Ubuntu Trusty arm64

 Labyrinth is a lightweight mind-mapping tool, written in Python using Gtk
 and Cairo to do the drawing. It is intended to be as light and intuitive as
 possible, but still provide a wide range of powerful features.
 .
 A mind-map is a diagram used to represent words, ideas, tasks or other items
 linked to and arranged radially around a central key word or idea. It is
 used to generate, visualise, structure and classify ideas, and as an aid in
 study, organisation, problem solving, and decision making

Source package