Hello,

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

body .woodmart-hover-base.product-in-carousel:hover .woodmart-buttons {
    background-color:transparent;
	box-shadow:none;
}
body .product-grid-item.woodmart-hover-base.product-in-carousel .woodmart-buttons > div a {
    background-color: #fff;
    -webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.1);
    box-shadow: 1px 1px 1px rgba(0,0,0,.1);
    border-radius: 50%;
    width: 35px;
    height: 35px;
	margin-bottom:10px;
}

Best Regards