Many KDE applications use a standard font chooser dialog or widget to allow users to select a font.  Your task is to write a section describing this widget for a future "building blocks" documentation encompassing features found in many KDE applications.

Expected Results:  a section of documentation describing the standard font chooser, including all elements of the user interface and any keyboard shortcuts or configuration options, as well as a screenshot

Prerequisites:  a good command of the English language and a working installation of the KDE Software Compilation