You can go to the blockbuilder and to fork this block and create your own visualizations.
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<head>
<meta charset="utf-8">
<script src="https://cdnjs.cloudflare.com/ajax/libs/vega/3.0.8/vega.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vega-embed/3.0.0-rc7/vega-embed.js"></script>
<style>
body {
font-family: sans-serif;
}
.vega-actions a {
padding: 0.2em;
}
</style>
</head>
<body>
<div id="vis"></div>
<script>
const spec = "chart.vega.json";
vegaEmbed('#vis', spec, {actions: false});
</script>
</body>
https://cdnjs.cloudflare.com/ajax/libs/vega/3.0.8/vega.js
https://cdnjs.cloudflare.com/ajax/libs/vega-embed/3.0.0-rc7/vega-embed.js