Kailey (trepmal)

The ability to select an image from the media library as the background is baked right into core now. This plugin will no longer be developed.
Add an action button to images in the media library. Easily use any image as your custom background.
Custom backgrounds must be enabled on the active theme

Get Background From Library

(No longer in development.) Add an action button to images in the media library. Easily use any image as your custom background

Schwarttzy

Featured Background is a lightweight WordPress plugin that lets you set a custom background image for specific posts or pages using the built-in featured image functionality. Now enhanced with expanded options for customization, parallax effects via CSS, overlay colors, custom post type support, Gutenberg sidebar integration, and UI improvements.
<h4>Key Features</h4>
<ul>
<li>Expanded Background Options: Customize position, repeat, size, attachment, and fallback color.</li>
<li>Parallax Effect: Simple CSS-based parallax (using fixed attachment) with an optional toggle.</li>
<li>Overlay Color and Opacity: Add a semi-transparent overlay for better text readability.</li>
<li>Custom Post Type Support: Enable the meta box on any public CPT via a settings page.</li>
<li>Gutenberg Integration: Dedicated plugin sidebar in the block editor for seamless configuration.</li>
<li>UI Improvements: Added “Remove Image” button and live preview in the meta box.</li>
<li>Simple Integration: Easily upload or select an image via the WordPress media library.</li>
<li>Automatic CSS Injection: Injects inline CSS into the header with options applied to the <code>body</code> element.</li>
<li>Admin Preview: Live preview in the editor.</li>
<li>Secure and Efficient: Nonces, sanitization, conditional enqueuing.</li>
<li>Clean Uninstall: Removes all data on deletion.</li>
<li>Modern Compatibility: Tested with WordPress 6.8.2 and PHP 8+.</li>
</ul>
Ideal for personalizing backgrounds per page. The CSS includes comments for identification.
Report issues on the <a href="https://wordpress.org/support/plugin/featured-background/" rel="ugc">support forum</a>.

Featured Background

Plugin written by a newbie

Set a featured image as the background for individual posts or pages with advanced options like parallax, overlays, and more.

Get Background From Library vs Featured Background