ansition: {{ transition }}, // none/fade/slide/convex/concave/zoom
        // Transition speed
        transitionSpeed: {{ transition_speed }}, // default/fast/slow
        // Transition style for full page slide backgrounds
        backgroundTransition: {{ background_transition }}, // none/fade/slide/convex/concave/zoom
        // The maximum number of pages a single slide can expand onto when printing
        // to PDF, unlimited by default
        pdfMaxPagesPerSlide: {{ pdf_max_pages_per_slide }},
     