Run Rector on your code to see what it can do for you:
public function run(MediaManager $manager) { // this one is correctly handled - $manager->addMediaFolder($folderName, '', '', ''); + $manager->addMediaFolder($folderName, '', 'PNG', ''); // this one is not, the wrong parameter is changed and // we end up with a positional parameter after a named parameter - $manager->addMediaFolder($folderName, mediaType: '', color:''); + $manager->addMediaFolder($folderName, mediaType: '', 'PNG'); } }
rector.php