Supported setting types of Shopify.extension.toml

[appaza]

Hi,
I want to ask about setting types, I see there is no select field
https://shopify.dev/docs/api/checkout-ui-extensions/2024-10/configuration#supported-setting-types 
I want to field like attached screenshot 

[appaza]

This is custom app, you can see https://apps.shopify.com/checkoutplus?show_store_picker=1 this app, I am trying to clone the extension , but I cannot write code for select field

[appaza]

This is Shopify.extension.toml file

[appaza · Accepted solution]

[[extensions.settings.fields]]
key = "label_text_size"
type = "single_line_text_field"
name = "Label Text Size"
description = "Enter a label for the upsell"

[[extensions.settings.fields.validations]]
name = "choices"
value = "[\"Default\", \"Heading-small\", \"Heading-medium\", \"Heading-large\", \"Text-small\", \"Text-medium\", \"Text-large\", \"Text-xlarge\"]"