hexo-theme-amane/layout/widget/tagcloud.ejs

<% if (site.tags.length) { %>
<div class="card widget">
    <div class="card-content">
        <h3 class="menu-label">
            <%= __('widget.tag_cloud') %>
        </h3>
        <%- tagcloud() %>
    </div>
</div>
<% } %>