friendica/view/theme/frio/schema/red.php

<?php
/*
 * Name: Red
 * Author: Rabuzarus
 * 
 * List here all variables which will get overwritten through this schema
 * Overwrites: nav_bg, nav_icon_color, link_color, bgcolor, contentbg_transp
 */

	$nav_bg = "#870000";
	$nav_icon_color = "#f5f5f5";
	$link_color = "#b50404";
	$bgcolor = "#ededed";
	$contentbg_transp = 95;