For next Release of Xpad 4.4 you will have a new look for preference dialog.
You will see the GtkNotebook used to optimize the dialog size. Reason is to use Notebook is if user is having a laptop (10” screen) , then he was not able to see the bottom of preferences window.
First solution was to make it scrollable, but having a notebook makes much better what you say guys.?
In future if options increased on preferences dialog then we can make the Noteook page scrollable.