Examine source code of Alhambra Granada

{
  "theme": {
    "images": {
      "theme_frame": "the_alhambra_of_granada_spain.jpg"
    },
    "colors": {
      "frame": "#d18e8e",
      "tab_background_text": "#d67481"
    }
  },
  "version": "2.0",
  "name": "Alhambra Granada",
  "manifest_version": 2
}