Examine source code of AlfonsMucha-Medea

{
  "theme": {
    "images": {
      "theme_frame": "lightweighttheme-header.jpg"
    },
    "colors": {
      "frame": "#ebe4e4",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "AlfonsMucha-Medea",
  "manifest_version": 2,
  "description": "Alfons Mucha - Medea 1898\n\nThis image (or other media file) is in the public domain because its copyright has expired.\n\nThis applies to the United States, Australia, the European Union and those countries with a copyright term of life of the author plus 70 years."
}