Examine source code of Near the window

{
  "theme": {
    "images": {
      "theme_frame": "3.jpg"
    },
    "colors": {
      "frame": "#ffd60a",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Near the window",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/f1ec9b73afef5acf9fab6f48e987871be7430b645894d41f0dfb2e9921d5ecd2/http%3A//abstract.desktopnexus.com/wallpaper/511983/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/511983/</a>\nBy Anne Mortimer\n\nChristmas tree, decorations, window, interior, snowing, flakes, Christmas balls, ornaments. fir, cat, black, white, golden, yellow, red, bright, city, country, small, eyes, snow, lights, glitter, feline, animal,evening, outside, season, December, January, February, trees, look, glass,  Real.Twilight"
}