Install gtk-update-icon-cache by entering the following commands in the terminal:
sudo apt update sudo apt install gtk-update-icon-cache
Description:
icon theme caching utility
gtk-update-icon-cache creates mmap()able cache files for icon themes. . GTK+ can use the cache files created by gtk-update-icon-cache to avoid a lot of system call and disk seek overhead when the application starts. Since the format of the cache files allows them to be mmap()ed shared between multiple applications, the overall memory consumption is reduced as well.
Homepage: https://www.gtk.org/
Version: 3.22.30-1ubuntu1
Section: misc