Completely Clean Fixer Child Theme Needed

Hello,

I am looking at cleaning the Fixer theme from Upfront so I can build a fresh site without all the presets getting in the way.

I have read previous tickets and realised that you can launch the following SQL queries in the WordPress database.

delete from wp_options where option_name like '%upfront%';

delete from wp_options where option_name like '%spirit%';

What would the required changes be to use this on the fixer theme?

Thanks In Advance,

Charlotte