How to create spark skins using fxg vector graphics&how to switch b/w spark skins at runtime/via XML

Question

Hi,
I want to create a number of Spark Skins using some vector images that I have with me. I can obtain the vector images in FXG format-- but what I am looking for is some way to quickly create multiple skins for various UI elements like buttons, menus, radio button, checkboxes, etc -- not by converting the fxg->mxml but by using fxg files directly (after including them in the skins project in Flash Builder 4.6). Since I want to create many such skins (atleast 8-10) what is the fastest way of accomplishing this?
Also, once I create multiple Spark Skins, how do I switch from one skin to another, in a running app? -- something like a template switcher, where the user viewing the flex app chooses a color, and the spark skin is immediately changed to the skin of that color (I would have already created the skin...). And can I store this skin template value in an XML? So that the end user can simply change this param in XML to change the design of the flex app?
Arvind.

Answer 1

Follow-up:
Out of pure wishful thinking I decided I would just see what happened if I pretended 'exportFXG' was already a part of JSFL. Based on the signature of 'exportPNG', i tried the following lines:
  var success = fl.getDocumentDOM().exportFXG("file:///C:/mySymbol.fxg"); 
  fl.trace("success:"+success); // output: success:true 
It worked! Fantastic! I'm not sure if exportFXG is considered still in "beta" and therefore intentionally excluded from the docs, or if it was just an oversight. But at least it gives us something to experiment with.