Shopify is going to deprecate checkout.liquid it is no longer available to use. Shopify wants us to migrate or build apps to customize the checkout using Checkout UI Extention.
I have already created the extension and created the city dropdown.
I am building this app for Shopify Plus store.
Question 1: How to replace my custom city dropdown with the Shopify default city field? Question 2: How to apply custom CSS to the whole checkout.
Please give me some suggestions and references that help me to get this done.