access to checkout branding settings and the shop must be on a Plus plan or a Development store plan.
Fields
alignment:
CheckoutBrandingHeaderAlignment -
The header alignment.
banner:
CheckoutBrandingImage -
The background image of the header.
cartLink:
CheckoutBrandingHeaderCartLink -
The cart link customizations for 1-page checkout. This field allows to customize the cart icon that renders by default on 1-page checkout.
colorScheme:
CheckoutBrandingColorSchemeSelection -
The selected color scheme of the header container.