<img src="http://www.gravatar.com/avatar/whatever_id_string_is?s=50&d=identicon" class="quip-avatar" alt="">
This question has been answered by Fildefer57. See the first response.
<li class="[[+cls]]" id="[[+idprefix]][[+id]]" [[+depth_margin:notempty=`style="padding-left: [[+depth_margin]]px"`]]> <div id="[[+idprefix]][[+id]]-div" class="quip-comment-body [[+alt]]"> <div class="quip-comment-right"> [[+gravatarUrl:notempty=`<img src="[[+gravatarUrl:replace=`http://==//`]]" class="quip-avatar" alt="" />`]] </div> <p class="quip-comment-meta"> <span class="quip-comment-author">[[+name]][[- +authorName]]:</span><br /> <span class="quip-comment-createdon"><a href="[[+url]]">[[+createdon]]</a> [[+approved:if=`[[+approved]]`:is=`1`:then=``:else=`- <em>[[%quip.unapproved? &namespace=`quip` &topic=`default`]]</em>`]] </span> </p> <div class="quip-comment-text"> <p>[[+body]]</p> [[+replyUrl:notempty=`<p><span class="quip-reply-link"><a href="[[+replyUrl]]">[[%quip.reply? &namespace=`quip` &topic=`default`]]</a></span></p>`]] </div> <div class="quip-comment-options"> [[+report]] [[+options]] </div> <div class="quip-break"></div> </div> [[+children:notempty=`<ol class="quip-comment-list">[[+children]]</ol>`]] </li>
[[+gravatarUrl:notempty=`<img src="[[+gravatarUrl]]" class="quip-avatar" alt="" />`]]
[[+gravatarUrl:notempty=`<img src="[[+gravatarUrl:replace=`http://==//`]]" class="quip-avatar" alt="" />`]]