/span>(<wbr>{<ol class="parameter-list"> <li><span class="parameter" id="-param-itemGap"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/double-class.html">double</a></span> <span class="parameter-name">itemGap</span> = <span class="default-value">15</span>, </span></li>
<li><span class="parameter" id="-param-rootFolderClosedIcon"><span class="type-annotation">dynamic</span> <span class="parameter-name">rootFolderClosedIcon</span> = <span class="default-value">const Icon(Ico