Examine source code of Front End Framework

{
  "homepage_url": "https://github.com/senorsunday/FrontEndFramework",
  "name": "Front End Framework",
  "description": "This is a framework for webextensions, so you can deploy one quickly without any front-end work",
  "version": "2018.8.21.1resigned1",
  "icons": {
    "16": "Public/Icons/favicon.svg",
    "96": "Public/Icons/favicon.svg"
  },
  "manifest_version": 2,
  "background": {
    "page": "Background/index.html"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "content_scripts": [
    {
      "js": [
        "active.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Front End Framework",
    "default_popup": "Background/Settings/toolbar.html",
    "browser_style": false,
    "default_icon": {
      "16": "Public/Icons/favicon.svg",
      "32": "Public/Icons/favicon.svg"
    }
  },
  "options_ui": {
    "page": "Background/Settings/settings.html",
    "browser_style": false
  },
  "applications": {
    "gecko": {
      "id": "front_end_framework@github.com"
    }
  },
  "web_accessible_resources": [
    "Public/*/*"
  ],
  "permissions": [
    "*://*/*",
    "storage",
    "tabs",
    "contextMenus",
    "clipboardWrite",
    "notifications",
    "alarms"
  ]
}