In your child theme functions you can redefine livingos_load_scripts() which is in extend\scripts.php.
This function loads up all the js used by the theme.
Copy the whole function into functions.php in the child theme and edit it to replace the two line at the bottom which call for the ‘tricks’ js file. Change the filename to a custom file of your own (i.e. tricks without the opacity code).
// new tricks
wp_register_script('tricks2', get_bloginfo('stylesheet_directory') . '/js/tricks.js',array('jquery'),1,true );
notice the change from template to stylesheet in the file url. This would look for ticks.js in a js folder inside your child theme.