hexo-theme-ayer/layout/_partial/footer.ejs

<footer class="footer">
  <div class="outer">
    <ul>
      <li>
        Copyrights &copy;
        <% if (theme.since && !isNaN(theme.since) && theme.since < date(new Date(), 'YYYY')) { %><%- theme.since%>-<% } %><%= date(new Date(), 'YYYY') %>
        <i class="ri-heart-fill heart_icon"></i> <%= config.author || config.title %>
      </li>
    </ul>
    <ul>
      <li>
        <% if (theme.pageFooter){ %>
        <% var hexoLink = '<a href="https://hexo.io" target="_blank">Hexo</a>'; %>
        <% var themeLink = '<a href="https://github.com/alkyl1978/hexo-theme-ayer" target="_blank">Ayer</a>'; %>
        <%- __('powered_by', hexoLink) %>
        <span class="division">|</span>
        <%- __('theme', themeLink) %>
        <% } %>
      </li>
    </ul>
  </div>
</footer>