Examine source code of Bot Sentinel

{
  "name": "Bot Sentinel",
  "short_name": "Bot Sentinel",
  "description": "Automatically identify inauthentic accounts and toxic Twitter trolls.",
  "version": "2.1.6",
  "manifest_version": 2,
  "icons": {
    "128": "images/icon.png"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://twitter.com/*",
        "https://www.twitter.com/*",
        "https://mobile.twitter.com/*"
      ],
      "js": [
        "scripts/twitter-content.js",
        "libs/canvas.js",
        "libs/jquery.js",
        "libs/mustache.js"
      ],
      "run_at": "document_end",
      "all_frames": false
    },
    {
      "js": [
        "scripts/deck-content.js",
        "libs/canvas.js",
        "libs/jquery.js",
        "libs/mustache.js"
      ],
      "matches": [
        "https://tweetdeck.twitter.com/*"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "js": [
        "scripts/social.js",
        "libs/canvas.js",
        "libs/jquery.js",
        "libs/mustache.js"
      ],
      "matches": [
        "https://counter.social/*"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "browser_action": {
    "default_icon": {
      "38": "images/icon.png"
    },
    "default_title": "Bot Sentinel",
    "default_popup": "pages/popup.html"
  },
  "web_accessible_resources": [
    "images/*",
    "pages/*",
    "styles/contentscript.css"
  ],
  "permissions": [
    "*://botsentinel.com/*",
    "*://*.botsentinel.com/*",
    "*://twitter.com/*",
    "*://*.twitter.com/*",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4edd1c73-3c7f-4a6c-9443-90f4e66222b5}"
    }
  }
}