/**
* @return ThemeInterface
*/
public function getActiveTheme()
{
if (!$this->container->hasParameter('cms.active_theme')) {
throw new \RuntimeException('No active theme set.');
}
$themeName = $this->container->getParameter('cms.active_theme');
if (!isset($this->themes[$themeName])) {
throw new \InvalidArgumentException("There is no theme [{$themeName}].");
}
return $this->themes[$themeName];
}
