Nexgen hide all styles and scripts. Good to use if you are using a third party plugin along side Nexgen that handles the styles and fancy stuff. This will hide all Nexgen junk from loading.

Hide Nextgen Junk

/*
 * Hide Nextgen styles and scripts
 */
if (!is_admin()) {
    // goodbye NextGen junk
    define('NGG_SKIP_LOAD_SCRIPTS', true);
    function nextgen_styles() {
            wp_deregister_style('NextGEN');
    }
    add_action('wp_print_styles', 'nextgen_styles', 100);
}