Set color only in header table

Rick's answer is likely your best solution. However, since the only way to achieve your goal is to introduce a table format override, you may end up with subtle management issues down the road if, for instance, you want to update a table style. Of course, additional scripts can be written (Rick's done this for me "more than once," and always with amazing results) but if you can figure a way to adjust your style guide to accommodate default formatting options you'll have one less thing to track in your documents. 

Hi oscarl10989624,

Yes. Rick is right. I also would ask someone to write a script for you. He can do this. Or you find companies here: https://partners.adobetechcomm.com/ 

And: Make a request in the Adobe bug tracker: https://tracker.adobe.com/#/home 

Then post the number here, so that others can vote for it.

Best regards

Winfried