code: def _get_vispy_font_filename(face, bold, italic):
      
      name = face + '-'
      name += 'Regular' if not bold and not italic else ''
      name += 'Bold' if bold else ''
      name += 'Italic' if italic else ''
      name += '.ttf'
      return load_data_file('fonts/%s' % name)
docs: Fetch a remote vispy font