private function options_sub_tabs()
{
$current_tab = isset($_GET['subtab']) ? $_GET['subtab'] : 'github_updater';
echo '<h3 class="nav-tab-wrapper">';
foreach ($this->settings_sub_tabs() as $key => $name) {
$active = $current_tab == $key ? 'nav-tab-active' : '';
echo '<a class="nav-tab ' . $active . '" href="?page=github-updater&tab=github_updater_settings&subtab=' . $key . '">' . $name . '</a>';
}
echo '</h3>';
}