Remove blue border around my product thumbnails in Brooklyn Theme

My store URL is sperrybeeswax.com, store password: ollie

I’m not using square photos because it looks better on mobile that way. That said, with the images cropped to a 4x3 resolution, I can’t get figure out how to get rid of this annoying border around the thumbnails.

Thanks!

You could try adding this code to the bottom of timber.scss.css

.product-single__thumbnail.active-thumb {
  border-color: transparent;
}