[development] theming settings form

I am attempting to run the settings form at admin/setting/mymodule for one of my modules through a theme. I have tried using the same method that works for other forms, ie create a theme of the same name, register it and render the form in the theme. This does not work for a system_settings_form. If I try to run it through a theme explicitly I get a WSOD even though the theme only tries to run the form through drupal_render(). I have also tried to set $form['#theme'], that had no effect. Does anyone one know what the 'right' way to theme a system_settings_form is? TIA -- ----------------- Bob Hutchinson Midwales dot com -----------------