<p>The community needs to identify such tags, because there is no guarantee that the system could correctly infer the desired highlighting syntax from the tag name.  Moderators can indicate which language goes with which tag.  I have done so with <a href="https://stats.stackexchange.com/questions/tagged/matlab" class="post-tag" title="show questions tagged &#39;matlab&#39;" rel="tag">matlab</a>, so it should be working now.</p>
