Galleria Image Gallery - Lightbox Effect

I’m wondering if it’s possible to add a lightbox effect and/or shadowbox effect to the galleria image gallery?

I want to use the classic gallery, but when it loads, I want the background of the website to be darkened and the emphasis to be on the gallery box, like this:

I used galleria, but the images (the “arrows” and “esc” images) are not showing? I look at my links for the images and they are correct. Is this a javascript problem?

Here is a link to the site:

I’m not seeing any smoothbox when you click on the image. Is that what you’re referring to?

I don’t know what the smoothbox is? The arrows that are circled are not working on my site, I don’t know how to get them working?

Solved the problem!

I forgot to place …/ in the link to the images in the galleria.classic.css file.