Dev:PSDetailController

PSDetailController is a view controller controlling a custom editing pane.

Detail controller in Specifier plist
PSDetailController is in fact a misnomer, because the detail key in the preferences specifier plist can be any PSViewController (usually a subclass of PSListController). Actually, the only requirement of the detail key is the class must adopt the informal protocol

The detail controller class will be sent a +validateSpecifier: message if one exists right after the bundle is lazy-loaded:

Whenever a view becomes visible, a detail controller class instance will be allocated with -initForContentSize:, and then call -viewWillBecomeVisible: to notify that the view becomes visibile. There is also some other calls to the controller but you'd better leave them untouched.