Admin Panel

Move admin bar to the bottom

body {margin-top: -28px;padding-bottom: 28px;}
body.admin-bar #wphead {padding-top: 0;}
body.admin-bar #footer {padding-bottom: 28px;}
#wpadminbar { top: auto !important;bottom: 0;}
#wpadminbar .menupop .ab-sub-wrapper { bottom: 32px; }

Change “Howdy” text in the admin bar

function snipjar_change_howdy( $wp_admin_bar ) {

	// Edit the line below to set what you want the admin bar to display intead of "Howdy,".
	$new_howdy = 'Welcome,';

	$my_account = $wp_admin_bar->get_node( 'my-account' );
	$wp_admin_bar->add_node(
		array(
			'id'    => 'my-account',
			'title' => str_replace( 'Howdy,', $new_howdy, $my_account->title ),
		)
	);
}

add_filter( 'admin_bar_menu', 'snipjar_change_howdy', 25 );

Change admin panel footer text

add_filter(
	'admin_footer_text',
	function ( $footer_text ) {
		$footer_text = 'Brought to you by by <a href="https://www.snipjar.com" target="_blank" rel="noopener">Snipjar</a>';
		return $footer_text;
	}
);