Reply To: Background white a little bit transparent

Hello,

Please add this code to the Theme Settings > Custom CSS > Global:

body .product-grid-item .product-image-link {
    background-color:rgba(0,0,0,0.3);
}

In order to see the change you need to upload png images with the transparent background, now your images are jpg and nothing would be visible: https://gyazo.com/9ea6b7dc3a9728fcef00c90e5a3ba8da

Best Regards