Examine source code of Sunrise on the Marsh

{
  "theme": {
    "images": {
      "theme_frame": "SunriseontheMarshH.jpg"
    },
    "colors": {
      "frame": "#ccc6c6",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "Sunrise on the Marsh",
  "manifest_version": 2,
  "description": "pond, wetland, sunrise, sun, sky, trees, birds flying, sky, art, paint, reflection, marsh, My wallpaper to match can be found at: <a href=\"https://outgoing.prod.mozaws.net/v1/dc388fad0ff1f744e8ec63e0c59e10aea51d2f98278d12c406dc72318392516a/http%3A//nature.desktopnexus.com/wallpaper/704770/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/704770/</a>"
}