If there are more in-depth changes you want to make to your design that aren’t included in our built-in theme editor, you’ll need to dig in to your code or hire a designer/developer.
For savvy code conquerers
Most theme HTML is editable within all built-in pages, except for checkout. Big Cartel themes also use Liquid markup as the theme’s language. Check out our tech documentation for the full rundown.
CSS-wise, it’s best to override existing styles at the bottom of Customize Design > Advanced > CSS instead of editing it directly, especially if you’re only tweaking certain page elements.
Have a specific question? Try posting on Stack Overflow or searching the Big Cartel tag there for advice.
If you need more help
If none of our built-in themes strike your fancy, but you don’t have any coding experience, you may want to hire some outside help from a designer/developer. We recommend checking out a resource like 99designs to find the right person to build what you need.