How can i hide file name in image pop-up preview?

Hi everyone!
I have few images on a page and i’ve chosen the setting to show the image in a pop-up window if clicked. It works fine, but i would like to hide the name of the file of the pic that is being shown, it doesn’t look so good as for me. Is there a setting somewhere to be able to do this? Or maybe someone can share a piece of code to do it “by hand”?
Thanks in advance!

I’ve found some info on how to do that using Wix Pro Gallery App, but i am not using it. My case is just pics that are loaded from a dataset


$w('#imageID').tooltip = "";

imageID here is the defined id for my image on the site.

Enjoy your day!