[Zope] Tree

Is there a way to change the look of a tree? ie. If you use <dtml-tree>, a html table will be created (Look at the source of the html page). Now, I would like to give the tree another look, i.e. color certain rows/cells etc. Unfortunately this seems not to be possible, just because <dtml-tree> tag always add it's own table source to the html-page. My question: Is there a create such a tree, but with my own html-tags? Thanks, Tom.