           transition: 800,
                theme: "whiteboard",
                //toggleChalkboardButton: { left: "30px", bottom: "30px", top: "auto", right: "auto" },
                //toggleNotesButton: { left: "30px", bottom: "30px", top: "auto", right: "auto" },
                // configuration options for notes canvas and chalkboard
                color: ['rgba(0,0,255,1)', 'rgba(255,255,255,0.5)'],
                background: ['rgba(127,127,127,.1)', '../../slides/plugin/chalkboard/img/whiteboard.pn