Icon PreferencesPlaybackButton StringsTable Reading SystemSymbolIcon book PreferenceSpecifiers Type PSGroupSpecifier Title READING_OPTIONS_HEADER FooterText Type PSToggleSwitchSpecifier Title AUTO_HYPHENATION Description AUTO_HYPHENATION_DESCRIPTION Key BKAutoHyphenation DefaultValue Type PSGroupSpecifier Title DISPLAY_SLEEP_HEADER FooterText Type PSToggleSwitchSpecifier Title EXTEND_SLEEP Key BKPreventScreenDimmingPreferenceKey DefaultValue