.modal--reportback {
  background: url('https://trello-attachments.s3.amazonaws.com/52efb2a8c56de7320e6ffc06/52e1724e23eeb26f4e9fc427/6e777d666be111dec7badaecb9bf18ac/polaroid-pattern.jpg') !important;

  label {
    color: #fff;
  }

  .form-actions {
    text-align: center;
  }
}

.modal {
  .modal-content.modal--reportback {
    background: url('https://trello-attachments.s3.amazonaws.com/52efb2a8c56de7320e6ffc06/52e1724e23eeb26f4e9fc427/6e777d666be111dec7badaecb9bf18ac/polaroid-pattern.jpg');

    label {
      color: #fff;
    }

    .form-actions {
      text-align: center;
    }
  }
}

Clean up report-back modal styles a bit.
Clean up report-back modal styles a bit.
