change heart icon color when add to list

So solved thanks

.yith-wcwl-add-to-wishlist i {
font-family: ‘fontawesome’ !important;
}

/*the product is not yet in the wishlist*/
.yith-wcwl-add-to-wishlist:not(.exists) i {
color: red;
}

/*the product is in the wishlist*/
.yith-wcwl-add-to-wishlist.exists i {
color: blue;
}