Imgix parameters

functions.php

<?php

add_filter('ilab-imgix-filter-parameters', function($params, $size, $id, $meta) {
    // $params contains the imgix parameters
    // $size is either an array of two numbers for width/height, or it is the name of a size
    // $id is the attachment ID
    // $meta is the attachment's meta
    
    if (!is_array($size) && ($size == 'download')) {
        // Full size
	    unset($params['w']);
	    unset($params['h']);
	    unset($params['fit']);
	    
	    $parms['q'] = 100;
    }
    
    return $params;
}, 10, 4);