What database tables do I need to upload to revert a style change?
 

I wanted to add a new style, and since it's been years since I did it, I accidentally over-wrote the default theme instead of adding a new one.

I can't just revert the default theme as I had customised it and I need those customisations back.

I have a back up of the site, but I'm unsure what tables I need to upload to revert the changes back.