Add PayPal Checkout Logo from REST API

[Lar_ang]

Hello

I am implementing PayPal payment from REST API like this

http://paypal.github.io/PayPal-PHP-SDK/sample/doc/payments/CreatePaymentUsingPayPal.html

While payment, it shows PayPal checkout page.

I want to add my logo to this checkout page.

How can I do this? it looks NVP/SOAP has some way to add logo.

But I can't find the way using REST API.

Thanks much to help me.