hexo-theme-icarus/layout/categories.ejs

<section class="layout-wrap">
    <div class="layout-title">
        <span><%= page.title %></span>
    </div>
    <div class="layout-wrap-inner list-categories">
        <% if(site.categories.length) { %>
            <%- list_categories(site.categories) %>
        <% } %>
    </div>
</section>