Install sawfish-data by entering the following commands in the terminal:
sudo apt update sudo apt install sawfish-data
Description:
sawfish architecture independent data
This package contains the architecture independent lisp compiled files and other data, such as theme pixmaps. It is unlikely to be of any use without the sawfish window manager. . The lisp source files are in the sawfish-lisp-source package.
Homepage: http://sawfish.tuxfamily.org/
Version: 1:1.11.90-1.1
Section: universe/x11