I am using the Narrative theme and i am having troubles adding a image for the background for the entire site, the site is Anatrafire.com , i have done this with other themes with no trouble but for some reason i am having troubles with this theme. Any help would be greatly appreciated.
Sorry you are facing this issue, it would be my pleasure to help you.
Welcome to the Shopify community! 
Thanks for your good question.
Please share your site URL, your store password protect
I will check out the issue and provide you a solution here.
@KetanKumar Sent you a message on your page with info. Thanks for your help it is greatly apricated.
@KetanKumar Here is the image url, not sure if this will be the final image but its one i wanted to try out.
pexels-trace-hudson-2529973.jpg
Greetings, @Tru_Line .
I understand that you’re looking to add an image as the background for your Narrative theme. Since you’re using a Shopify-supported theme, then this is something that our Theme Support team can help you with. If your store is subscribed to a plan, you’re eligible to use the complimentary design time included with the subscription for customizing your theme. While we’re not able to provide account-specific support via the Shopify Community at this time, we’d be happy to continue assisting you through live chat, email, or callback. Please visit the Shopify Help Center and log in to your account to create a support request.
I’d love to know when our Theme Support can help you with adding the background image. Keep me posted!