[Plugin: WP-dTree] Get rid of blank dtNode div at top?

So the gist of the code is like this –

<div class="dtree">
<script type="text/javascript">
<div id="dtree_cat1" class="dtree_cat">
<strong><div class="dtNode"> </div></strong>
<div id="dcat10" class="clip" style="display:block;">
</div>
<script type="text/javascript">
</div>

I have the menu set up so that each category title has a black background, separate from each other title (rather than the whole menu having a black background). This causes that blank dtNode div I have bolded in the code to have a black background, with nothing in it. Is there any way to remove this div, or rename it (or rename all other dtNode divs), so I don’t have a blank black box at the top of the menu?

[Please post code snippets between backticks or use the code button.]