Hello,
Thanks for using our theme. We provide just examples of products. Either edit existing products – add attributes http://prntscr.com/rwjw2x > create variations http://prntscr.com/rwjwbx > add prices http://prntscr.com/rwjwon = http://prntscr.com/rwjwxb , or create your own products https://docs.woocommerce.com/documentation/plugins/woocommerce/getting-started/setup-products/ This video will help you to sort out with variation swatches – https://youtu.be/LgzC4iK-j6A Let us know if you need any further assistance.
Regards
