plugins/profile_images/views/blocks/profile_images.html.erb
<%= block_title(block.view_title, block.subtitle) %>
<div class="profile-images-block">
<% unless block.images.size == 0 %>
<ul>
<% block.images.each do |image| %>
<li><%= link_to content_tag(:span, image.title), image.view_url, style: "background-image: url(#{image.public_filename(:thumb)})" %></li>
<% end %>
</ul>
<br style="clear: both;" />
<% else %>
<div class="profile-images-block-none"><%= c_('None') %></div>
<% end %>
</div>