Install libethumb1 by entering the following commands in the terminal:
sudo apt update sudo apt install libethumb1
Description:
Library to create thumbnails for images and documents
Ethumb uses Evas to generate thumbnail images of given files. The API allows great customization of the generated files and also helps complying to FreeDesktop.Org Thumbnail Specification.
Homepage: http://www.enlightenment.org
Version: 1.8.6-2.5build1
Section: universe/libs