Examine source code of Fred and Rita

{
  "theme": {
    "images": {
      "theme_frame": "FredRita3.jpg"
    },
    "colors": {
      "frame": "#adadad",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Fred and Rita",
  "manifest_version": 2,
  "description": "Fred Astaire and Rita Hayworth posing, about to dance with style and class."
}