PSPDFAppearanceMode

NS_OPTIONS(NSUInteger, PSPDFAppearanceMode) {
    /// Normal application appearance and page rendering, as configured by the host app.
    PSPDFAppearanceModeDefault = 0,
    /// Renders the PDF content with a sepia tone.
    PSPDFAppearanceModeSepia = 1 << 0,
    /// Inverts the PDF page content and applies color correction. On iOS versions prior to iOS 13, it also applies a dark interface theme via UIAppearance.
    PSPDFAppearanceModeNight = 1 << 1,
    /// All options.
    PSPDFAppearanceModeAll = PSPDFAppearanceModeDefault | PSPDFAppearanceModeSepia | PSPDFAppearanceModeNight
}

Undocumented