Install compton-conf-l10n by entering the following commands in the terminal:
sudo apt update sudo apt install compton-conf-l10n
Description:
Language package for compton-conf
This package contains the l10n files needed by the compton-conf.
Homepage: https://github.com/lxde/lxqt-l10n
Version: 0.12.0-4ubuntu1
Section: universe/utils