<div id="sparkline"></div>
<script>
$("#sparkline").kendoSparkline({
    data: [10, 15, 8, 12, 18, 6, 14],
    valueAxis: {
        notes: {
            data: [
                { value: 8, icon: { background: "red" } },
                { value: 18, icon: { background: "green" } },
                { value: 6, icon: { background: "orange" } }
            ]
        }
    }
});
</script>