1. From Customize section, go to Background.
2. In Background Options you will see below options after you choose an image:
- Background Image: Select the image for Background available on the media library or upload from the other location.
If the preview is fine, click on Save and Publish to apply the recently selected/uploaded image as Background Image.
- Image Position: You can adjust the image position according to the arrow.
- Image Size: You will be able to choose various options from the dropdown. (Fit to screen, original, Fill Screen) you can choose any as your requirement.
- Repeat Background Image: You can check this to repeat the background image.
- Scroll with Page: You can check this option to scroll the image with the page.