Examine source code of PoE Trade Helper

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "4.2.0",
  "description": "__MSG_extDesc__",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "poe-trade-helper@poe-trade-helper",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "PoE Trade Helper",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "scripting"
  ],
  "host_permissions": [
    "https://www.pathofexile.com/*",
    "https://pobb.in/*",
    "https://poe.ninja/*",
    "https://discord.com/api/*",
    "https://discordapp.com/api/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.pathofexile.com/trade",
        "https://www.pathofexile.com/trade/*",
        "https://www.pathofexile.com/trade2",
        "https://www.pathofexile.com/trade2/*"
      ],
      "js": [
        "content/page_hook.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://www.pathofexile.com/trade",
        "https://www.pathofexile.com/trade/*",
        "https://www.pathofexile.com/trade2",
        "https://www.pathofexile.com/trade2/*"
      ],
      "js": [
        "content/trade_inject.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background/service_worker.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*",
        "sidepanel/*"
      ],
      "matches": [
        "https://www.pathofexile.com/*"
      ]
    }
  ]
}