Reply To: How can I change the swatch shape and position?

Hello,

As I understood you want to change the background of the out-of-stock label. If so, please add this Custom CSS to Theme Settings > Custom CSS

.product-label.out-of-stock {
    background-color: black;
    color: red;
    font-weight: 900;
}

Please, replace “red” and “black” with color as per your needs.

Best Regards