Hello,

Here is what I see: https://gyazo.com/f3ba67b27a02e1dfa21fc587e68a9dba

You can remove the border of the bottom row of the header builder in the row setting: https://xtemos.com/docs-topic/header-rows-and-columns-configuration/

You will find the option in the Color tabs.

If you have any questions please feel free to contact us.

Best Regards