change background color of enlarged product image

How do I change the background color of an enlarged/zoomed product image? When I click on the thumbnail of the product I get an enlarged image with a black border/background color. I'd like it to be white. How do I do that? I can't seem to find the right search term to find an answer.

Thanks in advance.

https://www.granolafromanothermother.com/shop/granola-10-oz

Thanks. It worked

Anyway to make the background color opaque and not transparent and make the left and right arrows and X (close box) black?

On 5/27/2023 at 5:08 AM, nooneshome said:

Anyway to make the background color opaque and not transparent and make the left and right arrows and X (close box) black?

Use this new code

/* Lightbox background color */
.yui3-lightbox2 .sqs-lightbox-overlay {
    background-color: rgba(255,255,255,0.5) !important;
}
.yui3-lightbox2 .sqs-lightbox-close, .yui3-lightbox2 .sqs-lightbox-previous, .yui3-lightbox2 .sqs-lightbox-next, .yui3-lightbox2 .sqs-lightbox-meta-trigger {
    color: black !important;
}