Examine source code of Light Into Fall

{
  "theme": {
    "images": {
      "theme_frame": "LightintoFallHCustom.jpg"
    },
    "colors": {
      "frame": "#283602",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Light Into Fall",
  "manifest_version": 2,
  "description": "autumn, beams, change, fall, forest, green, light, morning, orange, rays, season, summer, sun, sunshine, trees, woods\t\n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/e0828708b28c66e153cc210cf58550383fd50caf0d3851864ad108e87ce4d06a/http%3A//nature.desktopnexus.com/wallpaper/1152833/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1152833/</a>"
}