Examine source code of Vimeo repeat & speed

{
  "name": "Vimeo repeat & speed",
  "description": "Repeat & Speed buttons for Vimeo HTML5 video",
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "vimeo.content.js"
      ],
      "matches": [
        "*://vimeo.com/*",
        "*://player.vimeo.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "48": "images/vimeo48.png",
    "128": "images/vimeo128.png"
  },
  "version": "1.10resigned1",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{107a3139-dbff-4119-a7e6-94c6ae01f3dd}"
    }
  }
}