Examine source code of Evening snow walk

{
  "theme": {
    "images": {
      "theme_frame": "2mic.jpg"
    },
    "colors": {
      "frame": "#d1d1d1",
      "tab_background_text": "#fcb96d"
    }
  },
  "version": "2.0",
  "name": "Evening snow walk",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/ed113d0d64469bbc65366be1725d0e2fd43389129b6da93197e1b54bd498d928/http%3A//nature.desktopnexus.com/wallpaper/1241560/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1241560/</a>  \n   \nWinter, evening, light, golden, grey, dog, man, child, house, village, city, Christmas, walk, outside, sledge, people, trees, snow, holiday, warm, cold, road, bushes, Real.Twilight"
}