Header.Liquid Not Showing with Modular Theme

[AidenwithAS]

I am trying to change the search bar on my website. I am watching a video on it and it tells me to look into the header.liquid code but that is not showing in my theme. I'm using Modular theme version 4.1.3 if that helps.

I am trying to change the search icon into a search bar.

Can anyone help?

[EcomGraduates]

Since you're using the Modular theme (v4.1.3), the header.liquid file might not exist as a standalone file. Many newer Shopify themes use sections instead, meaning the search icon is likely inside header.liquid in the Sections folder or inside a snippet like search.liquid.