Matching the subscription block button with other buttons

This is not a support question for the Newsletter Glue team, I don’t expect an official reply. I would like to hear from other users.

How do you match the Newsletter Glue button with other buttons on your website or do you just have to live with having two styles on the page?

The second button on my site’s sign up page is a Jetpack button see: https://billbennett.co.nz/subscribe-by-email/

Has anyone else using Glue managed to match buttons?

The page I need help with: [log in to see the link]