Use the child theme to do the edits.
- Create a folder in /wp-content/themes/{your_theme_name}/
- Copy both
functions.php
andstyle.css
from this gist into that folder. - Replace all text in {braces} with appropriate values for your theme
- There are replacements in both files! The theme likely won't work if you don't make all replacements and remove all braces
- Review the Other Documentation below
- Selectively add and override files in the parent theme via your child theme.
- WordPress Theme Handbook "Child Themes" Page - Note: The way this child theme includes parent styles is better :)
- WordPress Template Hierarchy - This shows you the files you can override with or add to your child theme