Examine source code of Whispy Companion

{
  "name": "Whispy Companion",
  "description": "Companion extension for Whispy.org.",
  "version": "1.0.7",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "declarativeNetRequest",
    "cookies",
    "storage",
    "*://*.x.com/*",
    "*://x.com/*",
    "*://*.twitter.com/*",
    "*://twitter.com/*",
    "*://twimg.com/*",
    "*://*.twimg.com/*",
    "*://*.whispy.org/*",
    "*://whispy.org/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset",
        "enabled": true,
        "path": "ruleset.json"
      }
    ]
  },
  "icons": {
    "16": "/images/logo16.png",
    "32": "/images/logo32.png",
    "48": "/images/logo48.png",
    "128": "/images/logo128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://whispy.org/*",
        "*://*.whispy.org/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://twitter.com/*",
        "*://x.com/*"
      ],
      "js": [
        "redirects.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "companion@whispy.org",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "id": "companion@whispy.org",
      "strict_min_version": "109.0"
    }
  }
}