Hello!
The typography options can be controlled from the X store theme options>>typography>>headings but if you want to change the color of the title on the products only then please use the below CSS code. You just have to add it to the custom CSS section of theme options.
.single-product nav.woocommerce-breadcrumb a, .single-product nav.woocommerce-breadcrumb .title {
color: #fff !important;
}
Please let me know if you need any further help with this.
Thank you!















