Examine source code of Winter Morning

{
  "theme": {
    "images": {
      "theme_frame": "2mic.jpg"
    },
    "colors": {
      "frame": "#bf7f00",
      "tab_background_text": "#fffb00"
    }
  },
  "version": "2.0",
  "name": "Winter Morning",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/52587930a11d2bb5cb01d3b7cb32954271be0f4b8ef17b7350bd72e3fb75af3e/http%3A//abstract.desktopnexus.com/wallpaper/1242023/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/1242023/</a>   \n\nWinter, Christmas, snow, cottage, yellow, golden, sunset, trees, fir, pine, mountain, fence, forest, cozy, light, house, isolated, home, morning, evening, holiday, Real.Twilight"
}