Examine source code of Intentional Web Browsing

{
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Intentional Web Browsing options"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "57.0a1"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "checksite.js"
      ]
    }
  ],
  "description": "A simple, customizable web page blocker.",
  "homepage_url": "https://github.com/Reidasaurus/intentional_web_browsing",
  "manifest_version": 2,
  "name": "Intentional Web Browsing",
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "version": "1.1"
}