<div id="chart"></div>
<script>
$("#chart").kendoChart({
    series: [{
        type: "column",
        data: [1, 2, 3],
        notes: {
            data: [{
                value: 2,
                text: "Peak"
            }]
        }
    }],
    seriesDefaults: {
        notes: {
            icon: {
                background: "#ff6800"
            }
        }
    }
});
</script>