Builder

The ID of the app client that you want to customize. To apply a default style to all app clients not configured with client-level branding, set this parameter value to ALL.

A plaintext CSS file that contains the custom fields that you want to apply to your user pool or app client. To download a template, go to the Amazon Cognito console. Navigate to your user pool App clients tab, select Login pages, edit Hosted UI (classic) style, and select the link to CSS template.css.

The image that you want to set as your login in the classic hosted UI, as a Base64-formatted binary object.

The ID of the user pool where you want to apply branding to the classic hosted UI.