Examine source code of joggl

{
  "manifest_version": 2,
  "name": "joggl",
  "version": "1.1.2resigned1",
  "description": "track time in jira using toggl and tempo",
  "icons": {
    "128": "assets/images/joggl.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "src/jquery.js",
        "src/joggl.js"
      ],
      "css": [
        "src/style.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "assets/images/joggl.png"
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": "assets/images/joggl.png",
    "default_title": "joggl",
    "default_popup": "src/index.html"
  },
  "permissions": [
    "storage",
    "webRequest",
    "<all_urls>"
  ],
  "applications": {
    "gecko": {
      "id": "patrik.pihlstrom@gmail.com"
    }
  }
}