I am not sure how to do this.
I have 86 elements in total in the tree, with at most 4 sub levels per starting element.
Basically there are 8 starting elements. Each of these is assigned a colour through the admin area (thanks to your colour picker!!) what I need to do is colour up all sub elements of that starting element in that colour. Colourising the category and then the products within it..
try wrapping items' text in <span color="whatever">...</span>