Theme Update without changing the custom code

Topic summary

Updating the Shopify Dawn theme without losing custom Liquid customizations. The store owner added custom code (pricing tables, main menu color and text styling changes) directly to theme files.

Theme updates revert files to defaults, causing their custom code to be overwritten and requiring manual re-application after each update. Liquid is Shopify’s templating language used to modify theme templates and styling.

They ask if there’s a way to update the theme while preserving these custom changes.

No solutions, actions, or decisions are provided yet. The discussion is open with the key question unanswered.

Summarized with AI on December 31. AI used: gpt-5.

Hi Shopify Community, I am using Dawn theme for my store and added some custom liquid code to the theme, Such as, the pricing tables and few code changes to change Main menu colors and text styling. But every time, when there is update for the theme, everything rolls back to original and i have to do the changes again manually.

So my question, is there any way to update theme files without disturbing the custom code changes ?

my store is https://customchampionshipbelts.com/