That is an image added by WC with code that shows them.
I wouldn’t know how to show a custom field for a term in whatever you are using to build with, you have not even relieved what it is you’re using.
As I said, how you show custom fields for a term would be determined by the tool you are using to build the page.
The only thing I can point you to is PHP code which is not what I thin you’re looking for.
