pointer.opacityNumber(default: 1)
The opacity of the pointer.
Example
<div id="gauge"></div>
<script>
$("#gauge").kendoLinearGauge({
    pointer: {
        value: 25,
        color: "#f44336",
        opacity: 0.6
    },
    scale: {
        min: 0,
        max: 50
    }
});
</script>
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