Displaying related products on your single product page will help your users to find more products related to their choice and help you to increase sales. By default, the related products are displayed below the product tabs and you have an option to enable/disable them.
With WooCommerce Product Template Builder, you can customize the look and feel of the related products section as per the product styling. You can control the product title font size, colors etc. in the related products section and can also change the color for the star ratings and the product price text to fit your product style guide.
Here's a quick example of the related products section with customized colors -