[sweede]

What would be awesome for it to do, is work how the release builder / devtools does.

When you export your product (in this case style), it creates the appropriate XML from the templates listed on the file system.

for theme dev, you would have something like..

ForumRoot / ThemeDev / MyThemeName / Templates
ForumRoot / ThemeDev / MyThemeName / CSS
ForumRoot / ThemeDev / MyThemeName / Whatever

and if you wanted to change/update/modify the postbit template, you create in the Templates directory postbit.tpl and add the appropriate template information.

The plugin would then pick this new template file up and use it over the default master postbit.