Video Tutorial : How to install gThumb image viewer on Kali Linux
gThumb is an image viewer and organizer with options to edit images. It was originally based on GQView, and is designed to have a clean, simple interface. It integrates well with the GNOME desktop environment. gThumb is free and open-source, written in C and subject to the terms of the GNU General Public License (GPL).
https://www.youtube.com/watch?v=GDS44vqJmAI