Set a different Wordpress Admin Color Scheme for each development environment.

functions.php

<?php
/*
*   Set a different Wordpress Admin Color Scheme for each development environment.  
*   Add this function to the Wordpress functions.php file and make the necessary 
*   changes to $hosts array().
*   Wordpress Default Admin Color themes: default, light, blue, coffee, ectoplasm, midnight, ocean, sunrise
*/
function custom_env_admin_themes(){
		
	    //Change the host name and add additional hosts as key/value pairs to this array.
	    
		$hosts = array('{http://changeme.dev}'=>'light', '{http://changeme.com}'=>'default');
		$site_url = get_site_url();
		$admin_theme = 'default';
		
		foreach ($hosts as $key => $value) {
			if($key == $site_url){
				$admin_theme = $value;
			}
		}	
		return $admin_theme;
}
add_filter('get_user_option_admin_color', 'custom_env_admin_themes');