Any answer on how can i do that?

the code i can find is this:

/**
	 * DEPRECATED This function has been replaced - Output a woocommerce attribute selects 
	 *
	 * @since      1.0.0
	 * @param      array     $field      Array defining all field attributes 
	 * @todo       add filters to allow the field to be hooked into this should not echo html but return it. 
	 */
	public static function attributes( $post_id, $multiple = false ) { 

		if ( ! self::$basic_options[ 'attributes' ] ) { 

			// Array of defined attribute taxonomies
			$attribute_taxonomies = wc_get_attribute_taxonomies();

			// If there are any defined attributes display them 
			if ( !empty( $attribute_taxonomies ) ) { 

				$i = 0; 
				// Get any set attributes for the product 
				$attributes  = maybe_unserialize( get_post_meta( $post_id, '_product_attributes', true ) );

				foreach ( $attribute_taxonomies as $product_attribute ) {

					if ( in_array( $product_attribute->attribute_id, explode( ',', self::$hide_attributes_list ) ) ) continue;  

					$current_attribute = '';
					$is_variation = 'no';
					// $custom_attributes 	= ( $multiple ) ? array( 'multiple' => 'multiple' ) : array(); 

					// If the attributes aren't empty, extract the attribute value for the current product 
					if ( ! empty( $attributes ) && array_key_exists( wc_attribute_taxonomy_name( $product_attribute->attribute_name ), $attributes ) ) { 
						// get all terms 
						$current_attribute = wp_get_post_terms( $post_id, wc_attribute_taxonomy_name( $product_attribute->attribute_name ) );
						$is_variation = $attributes[ wc_attribute_taxonomy_name($product_attribute->attribute_name) ]['is_variation'] ? 'yes' : 'no' ; 
						$current_attribute = reset ( $current_attribute ); 
						$current_attribute = $current_attribute->slug;
					}

					// Output attribute select 
					WCVendors_Pro_Form_Helper::select( array( 
						'id' 				=> 'attribute_values[' . $i . '][]', 
						'post_id'			=> $post_id, 
						'label' 			=> ucfirst( $product_attribute->attribute_label ),
						'value' 			=> $current_attribute, 
						'show_option_none'  => __( 'Select a ', 'wcvendors-pro' ) . ucfirst( $product_attribute->attribute_label ),
						'taxonomy'			=> wc_attribute_taxonomy_name( $product_attribute->attribute_name ), 
						'is_attribute'		=> true, 
						'taxonomy_args'		=> array( 
												'hide_empty'	=> 0, 
												'orderby'		=> 'order' 
											), 
						// 'custom_attributes' => $custom_attributes, 
						)
					);

					// Output attribute name hidden 
					WCVendors_Pro_Form_Helper::input( array( 
										'post_id'				=> $post_id, 
										'id' 					=> 'attribute_names['.$i.']', 
										'type' 					=> 'hidden', 
										'show_label'			=> false, 
										'value'					=> wc_attribute_taxonomy_name( $product_attribute->attribute_name ), 
										)	
					);
					$i++; 
				}
			}

			// Support other plugins hooking into attributes 
			// Not sure if this will work ? 
			do_action( 'wcv_product_options_attributes' );

		} 

	} //attribute()

I cannot find any HTML code where i can change to show it differently.

Any ideas?