MapsGL - Customizing the heat index legend

This example updates the heat index legend after 5 seconds to display custom labels based on a normalized range of heat index values (from 0 to 1).
custom-heat-index-legend.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>MapsGL SDK - Customizing the heat index legend</title>
    <meta name="description" content="Update the default heat index legend with custom labels." />
    <meta name="viewport" content="width=device-width, initial-scale=1">
 
    <link href="https://api.mapbox.com/mapbox-gl-js/v3.12.0/mapbox-gl.css" rel="stylesheet" />
    <script defer src="https://api.mapbox.com/mapbox-gl-js/v3.12.0/mapbox-gl.js"></script>
 
    <link href="https://cdn.aerisapi.com/sdk/js/mapsgl/1.9.1/aerisweather.mapsgl.css" rel="stylesheet" />
    <script defer src="https://cdn.aerisapi.com/sdk/js/mapsgl/1.9.1/aerisweather.mapsgl.js"></script>
    
 
    <style>
    body, html {
        margin: 0;
        padding: 0;
    }
    #map {
        height: 100vh;
        width: 100%;
    }
    #legend {
        position: absolute;
        bottom: 10px;
        right: 10px;
    }
    </style>
 
</head>
<body>
    <div id="map"></div>
    <div id="legend"></div>
 
    <script>
        window.addEventListener('load', () => {
 
            mapboxgl.accessToken = 'MAPBOX_TOKEN';
            const map = new mapboxgl.Map({
                container: document.getElementById('map'),
                style: 'mapbox://styles/mapbox/light-v9',
                center: [-93, 34],
                zoom: 3
            });
 
            const account = new aerisweather.mapsgl.Account('CLIENT_ID', 'CLIENT_SECRET');
            const controller = new aerisweather.mapsgl.MapboxMapController(map, { account });
            
            controller.on('load', () => {
 
                controller.addLegendControl('#legend');
                controller.addWeatherLayer('heat-index');
 
                setTimeout(() => {
                    const legend = controller.controls.legend.getLegend('heat-index');
                    legend.update({
                        bar: {
                            labels: {
                                normalized: true,
                                values: [
                                    { value: 0, label: 'Uncomfortable' },
                                    { value: 0.5, label: 'Hot' },
                                    { value: 1, label: 'Dangerous' }
                                ],
                                marks: 'none'
                            }
                        }
                    });
                }, 5000);
 
 
            });
        });
    </script>
 
</body>
</html>