Install systempreferences.app by entering the following commands in the terminal:
sudo apt update sudo apt install systempreferences.app
Description:
GNUstep preferences application
System Preferences is an application which allows one to manage the settings of many aspects of the GNUstep environment and its applications. The System Preferences application is made of Modules, each one a bundle representing a single control panel, and is thus extensible and modular.
Homepage: http://gnustep.org/experience/systempreferences.html
Version: 1.2.0-2build3
Section: universe/gnustep