Examine source code of arenaa

{
  "theme": {
    "images": {
      "theme_frame": "sand1b.jpg"
    },
    "colors": {
      "frame": "#383434",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "arenaa",
  "manifest_version": 2,
  "description": "Sand traces in the dusk after the water washed away: <a href=\"https://outgoing.prod.mozaws.net/v1/b652d15eb7bbf42dbb337796ed26052598f9abc4a6689540e7346f2df93b559f/http%3A//www.safecreative.org/work/1006096552828\" rel=\"nofollow\">http://www.safecreative.org/work/1006096552828</a>"
}