public function getConfig()
    {
        // Create default keys for the config
        $config = array_merge([
            'width'   => null,
            'height'  => null,
            'options' => null,
        ], $this->config);

        // Add crops
        if ($crop = $this->getAttributeValue('crop_box')) {
            if (!is_array($config['options'])) {
                $config['options'] = [];
            }
            $config['options']['trim_perc'] = [
                round($crop->x1, 4),
                round($crop->y1, 4),
                round($crop->x2, 4),
                round($crop->y2, 4),
            ];
        }

        // Return config
        return $config;
    }