Examine source code of JIRA Issue Preview (JIP)

{
  "author": "Dennis Schwarz",
  "description": "Jira Issue Preview adds useful tools to your JIRA experience, e.g. displaying a preview of an issue on hover.",
  "manifest_version": 2,
  "name": "JIP",
  "icons": {
    "48": "icons/application-48.png"
  },
  "permissions": [],
  "browser_action": {
    "default_icon": "icons/application-32.png",
    "default_title": "JIP",
    "default_popup": "action/jira_prev.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.atlassian.net/*"
      ],
      "js": [
        "/content_scripts/main.js"
      ],
      "css": [
        "/content_scripts/main.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "/content_scripts/main.css"
  ],
  "version": "0.1.6",
  "browser_specific_settings": {
    "gecko": {
      "id": "{59047670-eb05-4731-8ef3-61482ff977e3}"
    }
  }
}