Install libdata-treedumper-renderer-gtk-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libdata-treedumper-renderer-gtk-perl
Description:
Gtk2::TreeView renderer for Data::TreeDumper
The Data::TreeDumper::Renderer::GTK widget is the GUI equivalent of Data::TreeDumper; it will display a perl data structure in a TreeView, allowing you to fold and unfold child data structures and get a quick feel for what's where. Right-clicking anywhere in the view brings up a context menu, from which the user can choose to expand or collapse all items.
Homepage: https://metacpan.org/release/Data-TreeDumper-Renderer-GTK
Version: 0.02-2
Section: universe/perl