and restricting displayed attributes with <code>hoverinfo='text'</code>.
</p>
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<p>Whenever a <code>fill</code> is relevant (e.g., <code>add_sf()</code>, <code>add_polygons()</code>, <code>add_ribbons()</code>, etc), you have the option of using the <code>hoveron</code> attribute to generate a tooltip for the supplied data points, the filled polygon that those points define, or both. As Figure <a href="controlling-tooltips.html#fig:hoveron-fill-points">25.2</a> demonstrates, if you want a tooltip attac