Enable conserve the application settings through differents sessions

Enable the application user to conserve his settings such as the font color and the font family or the background color of a given text box in order to use them in the next time when he open the application for more details about how to do this, please refer to this article: http://www.c-sharpcorner.com/UploadFile/yougerthen/204082008064658AM/2.aspx