public function remove($themeIds) {
        $themeIds = (array)$themeIds;
        foreach($themeIds as $themeId) {
            $prefixedId = $this->getPrefixedThemeId($themeId);
            if(!$this->themeExists($prefixedId)) {
                continue;
            }
            $this->registry->unregisterTheme($prefixedId);
        }
        $this->logInfo('Item themes removed: ' . implode(',', $themeIds));
        return true;
    }