Code snippet for change the Style of Provider name in Orders List page

get_ast_provider_name.php

add_filter( 'get_ast_provider_name', 'get_ast_provider_name_filter', 10, 2 );
function get_ast_provider_name_filter( $tracking_provider, $results ) {
	if ($tracking_provider == 'USPS' ) {
	    return "<span style='color:blue'>".$tracking_provider."</span>";	
	}
	return $tracking_provider;
}