Examine source code of VersionOne Improvements

{
  "manifest_version": 2,
  "name": "VersionOne Improvements",
  "description": "This extension allows the user to toggle show/hide the backlogs on versionone",
  "version": "1.3.1resigned1",
  "icons": {
    "16": "versiononebacklogtogglericon16.png",
    "48": "versiononebacklogtogglericon48.png",
    "128": "versiononebacklogtogglericon128.png"
  },
  "applications": {
    "gecko": {
      "id": "guilherme.ferreira@iamredcherry.com",
      "strict_min_version": "43.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://versionone.successfactors.com/vone/Default.aspx?menu=TaskBoardPage*",
        "http://versionone.successfactors.com/vone/Default.aspx?menu=TestBoardPage*",
        "http://versionone/vone/Default.aspx?menu=TaskBoardPage*",
        "http://versionone/vone/Default.aspx?menu=TestBoardPage*"
      ],
      "css": [
        "toggler.css"
      ],
      "js": [
        "toggler.js"
      ]
    }
  ]
}