Hello,
1), 2) go to Pages > edit every page and scroll down to the 8theme Layout options. Sidebar position > choose Without.
3) Go to Theme Options > Styling > Custom CSS and add the following code
.product-information .yith-wcwl-add-to-wishlist a:not(.alt):before, .product-info-wrapper .yith-wcwl-add-to-wishlist a:not(.alt):before, .product-summary-center .yith-wcwl-add-to-wishlist a:not(.alt):before {
background-color: #262626 !important;
}
.product-information .yith-wcwl-add-to-wishlist a:hover, .product-info-wrapper .yith-wcwl-add-to-wishlist a:hover {
color: #fff !important;
}
Regards