legend.item.highlight.markers.borderRadiusNumber

The border radius in pixels when type is set to "roundedRect".

Example

<div id="stock-chart"></div>
<script>
$("#stock-chart").kendoStockChart({
    dataSource: {
        data: [
            { date: new Date(2023, 0, 1), value: 100 },
            { date: new Date(2023, 0, 2), value: 105 },
            { date: new Date(2023, 0, 3), value: 98 }
        ]
    },
    legend: {
        item: {
            highlight: {
                markers: {
                    type: "roundedRect",
                    borderRadius: 5
                }
            }
        }
    },
    series: [{
        field: "value",
        categoryField: "date",
        name: "Stock Price"
    }]
});
</script>