@class UIStatusBar; typedef enum { UIBackgroundStyleDefault, UIBackgroundStyleTransparent, UIBackgroundStyleLightBlur, UIBackgroundStyleDarkBlur, UIBackgroundStyleDarkTranslucent } UIBackgroundStyle; @interface UIApplication (Private) @property (nonatomic, retain) UIStatusBar *statusBar; - (void)_setBackgroundStyle:(UIBackgroundStyle)backgroundStyle; @end