Ignore folder for theme check

checkbase.php

// Search "$dir_iterator" then insert those codes below this line:
// $dir_iterator = new RecursiveDirectoryIterator( $dir );

$filter = array( 'framework', 'tools', 'vendor', 'lib', 'installer', 'updater' );
$dir_iterator = new \RecursiveCallbackFilterIterator(
$dir_iterator,
	function( $item ) use ( $filter ) {
		return ! in_array( $item->getBaseName(), $filter );
	}
);