How can I customize the form background color in Google Forms?

Google Form's theme customization option allows you to change the background color, but it doesn't change the background color of the form itself; it only updates the page background color around the form. If you want to change the background color of the form and have more control over the form styles, you can use the Formfacade add-on for Google Forms.

How to change the background color?

Pre-requisite: You must have installed the Formfacade add-on for Google Forms. If you haven't installed the add-on yet, you can install it from G Suite marketplace using this link. https://gsuite.google.com/marketplace/app/formfacade/743872305260