Each background is controlled by a respective CSS rule.
for example, the background for “Travel” (in the demo) is controlled by the following:
.body-bg-7 body {
background-image: url("/ja_smashboard/templates/ja_smashboard/images/body-bg-7.jpg");
}
You could create custom CSS rules – within your “custom.css” file – for each background . . . .
OR – and this is just a brainstorm thought/idea . . .
I wonder what would happen if you kept just one CSS rule for the body-bg – deleting the others.
In theory, one would think that the one body-bg property would provide the single background image/color for the entire site.
Worth a shot ??
NOTE:
REMEMBER TO BACK-UP YOUR SITE FIRST so you don’t lose anything you might want to revert back to.