/**
* Deletes a theme, including its css directory.
*
* @param Theme $theme
* @throws \Exception if the theme is not a custom theme
*/
public function deleteTheme(Theme $theme)
{
if (!$theme->isCustom()) {
throw new \Exception("Stock theme '{$theme->getName()}' cannot be deleted");
}
$this->om->remove($theme);
$this->om->flush();
$fs = new Filesystem();
$fs->remove("{$this->themeDir}/{$theme->getNormalizedName()}");
}
