Hello, C64,
Thank you for contacting us and for using XStore.
Please go to Theme options > Header Builder > Header Sticky > change colors.
Also, read this article – https://www.8theme.com/documentation/xstore/woocommerce/product-images/
If you have any additional questions or concerns, please do not hesitate to reach out to us. Our support team is always available to assist you.
Kind Regards,
8theme team