Various bits of PHP / HTML to customize this theme. Add PHP to /custom/custom_functions.php unless otherwise noted.

PHP

1. Pull in your own CSS file to customize the landing page template

function themedy_add_custom_landingpage_css() {

    $template = get_post_meta(  get_the_id(), '_wp_page_template', true );

    if (is_page_template('page_landing.php')) {
        wp_enqueue_style('themedy-custom-landingpage-style', CHILD_THEME_LIB_URL.'/custom/landingpage-custom.css','',1,'screen');
    }

}
add_action( 'wp', 'themedy_add_custom_landingpage_css' );

Note you can change "/custom/landingpage-custom.css" to whatever you want, if it doesn't exist make sure to create it first.