It’s easy to add the cool new no background IPhone hack.
First: Do this before you set the wallpaper
Change settings to: > General > Accessibility > Turn on Reduce Transparency
Now just download the full image for the color you want and add it as the home screen with the option: Still
If you restart the phone or sometimes the color might get out of sync in which case you just change the background and than re-add the transparent image.
Make sure and click the image to get the full size to download