Examine source code of Blues Security Assistant

{
  "name": "Blues Security Assistant",
  "description": "An extension that provides security advice on popular websites.",
  "version": "0.5.0",
  "manifest_version": 2,
  "browser_action": {
    "default_icon": "assets/shield128.png"
  },
  "icons": {
    "16": "assets/shield16.png",
    "48": "assets/shield48.png",
    "128": "assets/shield128.png"
  },
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "run_at": "document_start",
      "js": [
        "browser-polyfill.js",
        "form_listener.js"
      ]
    }
  ],
  "content_security_policy": "default-src 'self'; script-src 'self' 'wasm-eval'; style-src 'unsafe-inline'; img-src https://*; connect-src 'self' data: https://surveys.cs.berkeley.edu https://*.sentry.io https://password-nudge-study-pilot.firebaseapp.com https://password-nudge-study-staging.firebaseapp.com https://us-central1-password-nudge-study-live.cloudfunctions.net https://password-api-prod.firebaseapp.com https://password-api-staging.firebaseapp.com https://raw.githubusercontent.com",
  "options_ui": {
    "page": "assets/testing_dialog.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "assets/shield.png",
    "assets/warning.html",
    "browser-polyfill.js"
  ],
  "permissions": [
    "alarms",
    "tabs",
    "storage",
    "webRequest",
    "https://*/*",
    "http://*/*"
  ]
}