This is in main.inc.php for the evoskin:

<div class="evo_sidebar">

	<?php
		// Display container contents:
		skin_container( NT_('Sidebar'), array(
				// The following (optional) params will be used as 
                // defaults for widgets included in this container:
				// This will enclose each widget in a block:
				'block_start' => '<div class="evo_side_item $wi_class$">',
				'block_end' => '</div>',
				// This will enclose the title of each widget:
				'block_title_start' => '<h3>',
				'block_title_end' => '</h3>',
				// If a widget displays a list, this will enclose that list:
				'list_start' => '<ul>',
				'list_end' => '</ul>',
				// This will enclose each item in a list:
				'item_start' => '<li>',
				'item_end' => '</li>',
				// This will enclose sub-lists in a list:
				'group_start' => '<ul>',
				'group_end' => '</ul>',
			) );
	?>

I want to override some of these settings for the Category widget / plugin only. How do i start?

--ƒ