Comment 2 for bug 891010

What about if it were to support inheritance similar to the way that a child theme works with either style.css or calendar.css:

A plugin developer would create the following file:

htdocs/artefact/foo/bar.css

A Theme developer would create the following file:

htdocs/theme/default/artefact/foo/bar.css

then Mahara would do one of the following:

1) Load the plugin style then load the theme style (similar to style.css)
2) check for a theme style if it exists load it, if it doesn't then fall back to the plugin style (similar to calendar.css).