Hi @zayno70

To change the pages background color, you need to do changes in the file at below path.
hotelcommerce/themes/hotel-reservation-theme/global.css - line:5760.

You will also need to add !important property on background color to force on all pages.

Hey @maher-aldous
You use QloApps APIs you will have to go to Advanced Parameters --> Webservices. https://prnt.sc/qr405g

Currently, we do not have such a technical doc that provides info on how to do the integration.

But you can refer to the Prestashop docs as QloApps is originated from Prestashop.