public function decoratorFactory(\atk4\data\Field $f, $seed = [])
    {
        $seed = $this->mergeSeeds(
            $seed,
            isset($f->ui['table']) ? $f->ui['table'] : null,
            isset($this->typeToDecorator[$f->type]) ? $this->typeToDecorator[$f->type] : null,
            [$this->default_column ? $this->default_column : 'Generic']
        );

        return $this->_add($this->factory($seed, ['table' => $this], 'TableColumn'));
    }