Sets Admin Colour in Staging and Dev sites

readme.md

Download the zip file and install as a plugin

Sets the admin colour of staging and local siyes to red ( sunrise )

index.php

<?php
/**
 * Plugin Name:       Set Admin Colour on Staging and Dev
 * Plugin URI:        http://fullworks.net/
 * Description:       Set Admin Colour on staging and dev sites: locahost  staginxyx.mydomain mydomain.local mydomain.dev
 * Version:           1.0
 * Author:            Fullworks
 * Author URI:        http://fullworks.net/
 * License:           GPL-3.0+
 * License URI:       http://www.gnu.org/licenses/gpl-3.0.txt
 */

// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
	die;
}
add_filter( "get_user_option_admin_color", function ( $result, $option, $user ) {
	if ( preg_match( '#(localhost|staging.*\.|\.local|\.dev)#', site_url() ) ) {
		return 'sunrise';
	}

	return $result;
}, 9999, 3 );