I've been working on a website using the twenty fifteen theme because the layout is almost the same as the client's wants.

But my problem is how can I change the full size background of the page for every page...

It is a multipage actually and not a one page website

Any help would be much appreciated..

  • Don't shout please. Please properly format your title Apr 20, 2016 at 8:25
  • Where does the full size background come from? There isn't one in the theme demo here. Did you mean the large image for the post, i.e. the boat?
    – Rup
    Apr 20, 2016 at 9:18
  • No, I mean the background in the customize section..it gives me a full background..but the problem is I want to make a different background for every page
    – Kris18
    Apr 20, 2016 at 9:44

1 Answer 1


Twenty Fifteen has a hook for you to modify the custom background theme_support arguments (documentation for those arguments here):

// Setup the WordPress core custom background feature.
add_theme_support( 'custom-background',
    apply_filters( 'twentyfifteen_custom_background_args',
            'default-color'      => $default_color,
            'default-attachment' => 'fixed',
) ) );

You can implement this filter in your child theme's functions.php, e.g.

function wpse_224240_custom_background_args($args) {
    $args['default-image'] = get_stylesheet_directory_uri() . '/images/background.jpg';
    return $args;
add_filter( 'twentyfifteen_custom_background_args',
            'wpse_224240_custom_background_args' );

and add any extra logic you need to change the image there. For example if you want a specific different image per post then you could store that in post metadata and only set the 'default-image' if you have a different URL from metadata to use. If you wanted to pick a random one from a set you can do this here too, etc., either hard-coding the set or storing it as an option if you'd like it configurable.


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