The author is to be commended for thoughtfully putting this extension together in a complete and usable form. Everyone wants more and more options but I think the nice thing about this arrangement is you can restrict yourself to using the same elements of style as defined in the back-end.

This extension does NOT work on all content. For instance, the text entered for category descriptions is ignored. It would be useful if this extension also operated on this kind of textual element since it is content as well. I actually downloaded this extension for that purpose so it doesn't do for me what I need.

I agree this is useful and probably belongs in every toolbox. A couple of things to watch for. The default installation sets 'Echo/Repeat Text' to on, which took me a while to track down as that setting is not normal to me. And the 'Shadow Box margins' default to only two attributes when you can use four.

Lastly, it would be more useful if the front-end tag attributes included all those of the back-end.

Please keep up the good work!