Examine source code of animated halloween

{
  "theme": {
    "images": {
      "theme_frame": "1.png"
    },
    "colors": {
      "frame": "#ff6f00",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "animated halloween",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/714c0b96e0dcd306059466df1d4a06d463abc5683051a0f8e5eb6597bb9c6981/http%3A//a-y.yourgig.ir\" rel=\"nofollow\">http://a-y.yourgig.ir</a>"
}