If you’ve made advanced code changes to your shop’s theme, it’s always a good idea to keep a copy of those changes on hand. Whether you decide to take some time away from your shop or maybe start fresh with a new theme, you’ll have that customized code on hand to easily add back in.
- Head to the Account area in your admin.
- Click Customize design.
- Click the Advanced tab and then click Download your current theme.
- You can add your code changes back in to your shop, by opening up your downloaded theme files, copying the code, and pasting those changes in (e.g. - changes to products.html will go in the Products page in the admin).
- When you’re finished, click Done and Save.