This framework handles the interface and semantics for system preferences access and modification.

• Preferences specifier plist format - the specification of the .plist files that specify the layout of an iOS preference pane.
• PSSpecifier - a user-facing setting or actionable item in the Preferences framework.
• PSRootController - an abstract class that represents the root controller in a Preferences-like application.
• PSListController - a class that represents a list of preferences in a table.
• PSDetailController - a view controller controlling a custom editing pane.
• PSEditingPane - a subclass of UIView that provides custom code, instead of via PSSpecifiers, to manage the user interface.