PSPDFAppearanceMode

NS_OPTIONS(NSUInteger, PSPDFAppearanceMode) {
    /// Normal application appearance.
    PSPDFAppearanceModeDefault = 0,
    /// Renders content with a sepia tone.
    PSPDFAppearanceModeSepia = 1 << 0,
    /// Inverts page content and applies a dark application theme.
    PSPDFAppearanceModeNight = 1 << 1,
    /// All options.
    PSPDFAppearanceModeAll = PSPDFAppearanceModeDefault | PSPDFAppearanceModeSepia | PSPDFAppearanceModeNight
}

Undocumented