Ive probably driven the xbl newsgroup (and myself) nuts trying to get what I think ought to be basic info/ documentation.
Given that XBL is intended to allow XUL developers create widgets for specific tasks , would it possible to have a document that describes how to build 'chromeless' widgets. Its taken me about a month to discover the usechromesheet option but even then the documentation is minimal. In particular I would like to know if it is possible to create a new <TREEROOT/> tag extending the <TREE>element using usechromesheet - and if not, why not. At the moment any attempt to extend <TREE/> results in loss of content. Documentation of this 'black art' would be most appreciated.
