I'm trying to customize my page and I've looked at the tutorials that they've included here on plugin creation and it seems to be just slipping from my grasp at the moment. Can someone please help me identify my problem. I have my manifest.xml as. 

<?xml version="1.0" encoding="UTF-8"?>
<plugin_manifest xmlns="http://www.elgg.org/plugin_manifest/1.8">
	<name>Citivend_custom</name>
	<author>Uli</author>
	<version>1.0</version>
	<category>bundled</category>
	<category>custom</category>
	<blurb>Customizepage</blurb>
	<description>Hoping to start customizing</description>
	<website>http://www.citivend.com/</website>
	
	<license>GNU General Public License version 2</license>

	<requires>
		<type>elgg_release</type>
		<version>1.8</version>
	</requires>
</plugin_manifest>

and my start.php as 

<?php
 
    function mytheme_init() {
        elgg_extend_view('css/elgg', 'Citivend_custom/css');
    }
 
    elgg_register_event_handler('init', 'system', 'Citivend_custom');
?>

The first I got from the developer plug in, the second from the tutorial on here.  I then proceed to create views/default/css/elements/layout.php and then I copy and paste the layout.php that is in the elgg/views/default/css/elements/layout.php, after which I tried and altered the code on me custom theme. When I try and activate it I get a fatal error message. Would Someone please tell me where I'm going wrong?