Install xaw3dg by entering the following commands in the terminal:
sudo apt update sudo apt install xaw3dg
Description:
Xaw3d widget set
Xaw3d is a set of 3-D widgets based on the Athena Widget set, which adds a three dimensional appearance on some of the widgets of X11 applications linked with this library. . Please note that this package no longer adds a three dimensional appearance on applications dynamically linked against libXaw.
Version: 1.5+E-18.3
Section: universe/x11