Backoffice custom column icon ALT TAG

[decoratiunidulci]

Hello,
 
I have created an icon for every order in backoffice that has a thread (message) attached. So the icon shows up ok but I would like to have a custom ALT TAG. I want to have the whole message as ALT TAG of that icon. I have tried many things with no success . Can anyone help me ?
 
This is the column from field_list:
 

			'mesa' => array(
				'title'=>'M',
				'align' => 'text-center',
				'icon' => array(
					1 => array(
						'src' => '../msg.png',
						'alt' => 'mesaj',
					)
				),
				'orderby' => false,
				'search' => false,
			),

and this is the line from the head of the MYSQL

IF((SELECT id_customer_thread FROM `'._DB_PREFIX_.'customer_thread` cttr WHERE (a.`id_order` = cttr.`id_order`)) > 0 , "Custom mesage to be extracted", "No message") as mesaj,

The alt text allways is "mesaj" but not the variable

 

Prestashop 1.6

 

Any help is appreciated

 

George

Edited July 16, 2017 by decoratiunidulci (see edit history)

[decoratiunidulci]

Anybody ? @Vekia ?