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I'm trying to add a custom background on a child theme. In the child theme's functions.php, I add add_theme_support( 'custom-background'); and the background option appears under the "Appearance" menu as expected. I add the image that I want, save, and nothing happens. The image won't appear as the background. What am I doing wrong?

Using version 4.3.1.

This is all that's in my child theme's function.php"

<?php

add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' );
function theme_enqueue_styles() {
    wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );

}

add_theme_support( 'custom-background');
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  • Are you sure its not just visually hidden? Search the source for the image name. Jan 8, 2019 at 14:43

1 Answer 1

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custom background can be used in below way:

  $defaults = array(
  'default-color'          => '',
  'default-image'          => '',
  'default-repeat'         => '',
  'default-position-x'     => '',
  'default-attachment'     => '',
  'wp-head-callback'       => '_custom_background_cb',
  'admin-head-callback'    => '',
  'admin-preview-callback' => ''
  );
 add_theme_support( 'custom-background', $defaults );

Example usage:

 $args = array(
  'default-color' => '000000',
  'default-image' => '%1$s/images/testback.jpg',
 );

add_theme_support( 'custom-background', $args );

Example output when you will view source:

 <style type="text/css" id="custom-background-css"> body.custom-background { background-color: #bdd96e; }

For details follow link:

Output:

enter image description here

Thanks!

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  • I have tried this method too. It still doesn't work. Specifically, I wrote: $args = array( 'default-color' => '000000', 'default-image' => '../../uploads/2015/10/bg_image.jpg', ); add_theme_support('custom-background', $args); Oct 16, 2015 at 18:13
  • If you want to add from admin section like from appearance tab then you need to look at code file : /wordpress/wp-admin/custom-background.php
    – jas
    Oct 16, 2015 at 18:14
  • Please view source of your page source, above function will return path like below: yoursite/wp-content/themes/yourtheme/images/bg_image.jpg And just use the same one I given in answer by replacing your image name.
    – jas
    Oct 16, 2015 at 18:15

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