wp-content/themes/twentysixteen/inc/customizer.php:939Enqueues front-end CSS for the link color.
<?phpfunction twentysixteen_link_color_css() { $color_scheme = twentysixteen_get_color_scheme(); $default_color = $color_scheme[2]; $link_color = get_theme_mod( 'link_color', $default_color ); // Don't do anything if the current color is the default. if ( $link_color === $default_color ) { return; } $css = ' /* Custom Link Color */ .menu-toggle:hover, .menu-toggle:focus, a, .main-navigation a:hover, .main-navigation a:focus, .dropdown-toggle:hover, .dropdown-toggle:focus, .social-navigation a:hover:before, .social-navigation a:focus:before, .post-navigation a:hover .post-title, .post-navigation a:focus .post-title, .tagcloud a:hover, .tagcloud a:focus, .site-branding .site-title a:hover, .site-branding .site-title a:focus, .entry-title a:hover, .entry-title a:focus, .entry-footer a:hover, .entry-footer a:focus, .comment-metadata a:hover, .comment-metadata a:focus, .pingback .comment-edit-link:hover, .pingback .comment-edit-link:focus, .comment-reply-link, .comment-reply-link:hover, .comment-reply-link:focus, .required, .site-info a:hover, .site-info a:focus { color: %1$s; } mark, ins, button:hover, button:focus, input[type="button"]:hover, input[type="button"]:focus, input[type="reset"]:hover, input[type="reset"]:focus, input[type="submit"]:hover, input[type="submit"]:focus, .pagination .prev:hover, .pagination .prev:focus, .pagination .next:hover, .pagination .next:focus, .widget_calendar tbody a, .page-links a:hover, .page-links a:focus { background-color: %1$s; } input[type="date"]:focus, input[type="time"]:focus, input[type="datetime-local"]:focus, input[type="week"]:focus, input[type="month"]:focus, input[type="text"]:focus, input[type="email"]:focus, input[type="url"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="number"]:focus, textarea:focus, .tagcloud a:hover, .tagcloud a:focus, .menu-toggle:hover,Introduced in Twenty Sixteen 1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-content/themes/twentysixteen/inc/customizer.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.