public PhotoSortForm()
 {
     InitializeComponent();
     p = new Prototype();
     ReferencePictureBox.Load(p.ReferencePhoto.FilePath);
     TargetChanged();
 }
 private void NewReferenceButton_Click(object sender, EventArgs e)
 {
     ReferencePictureBox.Load(p.NewReferencePhoto().FilePath);
 }