Contao\CoreBundle\DataContainer\PaletteManipulator::applyField PHP Метод

    private function applyField(array &$config, array $action, $skipLegends = false)
    {
        if (self::POSITION_PREPEND === $action['position'] || self::POSITION_APPEND === $action['position']) {
            $this->applyFieldToLegend($config, $action, $skipLegends);
        } else {
            $this->applyFieldToField($config, $action, $skipLegends);
        }
    }