Hi I prefer to do it from my end its a knowledge that helps me along the way as a developer. Appreciate if you just provide me the solution. If i really cant handle it then make sense for me to allow access from your support.
Here is the detail of the issue. Its the xstore theme with the standard woocommerce plugin. Your theme has a way to change the price font colour via Theme options. But the changes only happens at the single product page level and not on the front home page product catalogue.
Waiting feedback. Thanks.