Examine source code of Clockwork Viddya beta

{
  "theme": {
    "images": {
      "theme_frame": "headerff.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Clockwork Viddya beta",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/7745296e1eb1ece409ba07bdb965983293635078714d9aad2947d7529de42f27/http%3A//clockworkv.bplaced.net/\" rel=\"nofollow\">http://clockworkv.bplaced.net/</a>"
}