I try to use a new template (FORTE) but I cannot manage to have a real white background when I use a lightbox with my grid style gallery block. Yet, when I check light overlay in the design gallery, it's not a white background but a transparent background that appears... But I try to have this : http://www.gafsou.ch/ether/. Here, you can see on that lightbox that we don't see the website in background but only the picture.
Is this possible with code or am I using the wrong gallery block ?
Thank you !