Hi Morel,

> I'm not sure of what you mean, though if WYSIWYG is the ability to see the
> result of an applied XSL sheet, if browser based is the ability to browse in
> the tree structure, and if color formating is the highlighting of keyword. I
> think that treebeard is what want.

What I am actually after is something like TreeBeard, but that can be embedded 
into a web page (similar to the html editors like eWebEditPro, FCKEditor, etc) 
and then run from a web browser.
-- 
Cheers,

Julian Voelcker
United Kingdom