Hello,
Thank you so much for purchasing our theme and contacting our support center.
1. Buttons colors should be customized separately in Theme Settings -> Styles & Colors -> Buttons.
2. First, you need to disabled the bordered grid option. Then, put the following code snippet to the custom CSS area in Theme Settings
.product-element-top,
.woocommerce-product-gallery__wrapper,
.product-image-thumbnail {
border: 1px solid rgba(129,129,129,.2);
}
.woocommerce-product-gallery--with-images > .col-12:first-child {
padding-left: 17px;
padding-right: 17px;
}
Kind Regards
XTemos Studio