docs: def generate_data_files():
      """ Generate the data_files list used in the setup function
  
      :return: list of tuples of install directory and list of source files
      :rtype: list(tuple(str, [str]))
      """
      assets_folder = path.join('source', 'rafcon', 'gui', 'assets')
      share_folder = path.join(assets_folder, 'share')
      themes_folder = path.join(share_folder, 'themes', 'RAFCON')
      examples_folder = path.join('share', 'examples')
      libraries_folder = path.join('share', 'libraries')
  
      gui_data_files = [
          get_data_files_tuple(assets_folder, 'splashscreens'),
          get_data_files_tuple(assets_folder, 'fonts', 'FontAwesome'),
          get_data_files_tuple(assets_folder, 'fonts', 'Source Sans Pro'),
          get_data_files_tuple(themes_folder, 'gtk-3.0', 'gtk.css', path_to_file=True),
          get_data_files_tuple(themes_folder, 'gtk-3.0', 'gtk-dark.css', path_to_file=True),
          get_data_files_tuple(themes_folder, 'assets'),
          get_data_files_tuple(themes_folder, 'sass'),
          get_data_files_tuple(themes_folder, 'gtk-sourceview'),
          get_data_files_tuple(themes_folder, 'colors.json', path_to_file=True),
          get_data_files_tuple(themes_folder, 'colors-dark.json', path_to_file=True)
      ]
      # print("gui_data_files", gui_data_files)
  
      icon_data_files = get_data_files_recursively(path.join(share_folder, 'icons'), share_target_root="icons")
      # print("icon_data_files", icon_data_files)
  
      locale_data_files = create_mo_files()
      # example tuple
      # locale_data_files = [('share/rafcon/locale/de/LC_MESSAGES', ['source/rafcon/locale/de/LC_MESSAGES/rafcon.mo'])]
      # print("locale_data_files", locale_data_files)
  
      version_data_file = [("./", ["VERSION"])]
      desktop_data_file = [("share/applications", [path.join('share', 'applications', 'de.dlr.rm.RAFCON.desktop')])]
  
      examples_data_files = get_data_files_recursively(examples_folder, share_target_root=path.join("rafcon", "examples"))
      libraries_data_files = get_data_files_recursively(libraries_folder, share_target_root=path.join("rafcon",
                                                                                                      "libraries"))
      generated_data_files = gui_data_files + icon_data_files + locale_data_files + version_data_file + \
                             desktop_data_file + examples_data_files + libraries_data_files
      # for elem in generated_data_files:
      #     print(elem)
      return generated_data_files