On this pagePurseHeadlessCheckoutUIOptionstype PurseHeadlessCheckoutUIOptions = object; Options let you override theme configuration and translations on our UIs. Properties hostedFields? optional hostedFields: HostedFieldsUIOptions; Hosted fields config, used to override the brand selector and the fields location HostedFieldsUIOptions hostedForm? optional hostedForm: PurseHeadlessCheckoutHostedFormUIOptions; Labels that can be found in a form HostedFormUIOptions locale? optional locale: string; Locale code is a combination of ISO 639-1 language code and ISO 3166-1 country code . For example, fr_FR is a locale code for French language in France. Example 'fr-FR' redirection? optional redirection: RedirectionUIOptions; Redirection config, used to override the title of the redirection RedirectionUIOptions theme? optional theme: PurseHeadlessCheckoutPartnerUIOptionsTheme; This section holds the style configuration. Matters like, font, colors, spacing can be override using this config. PartnerUIOptionsTheme xPayButton? optional xPayButton: PurseHeadlessCheckoutXPayButtonUIOptions; Transparent config toward XPay partners (e.g. GooglePay ApplePay ...) XPayButtonUIOptions