Examine source code of skinbud.gg

{
  "manifest_version": 3,
  "name": "skinbud.gg",
  "version": "0.1.0",
  "description": "1-click Steam inventory sync + skinbud.gg cross-source prices on Steam Market & profile pages.",
  "permissions": [
    "storage",
    "alarms"
  ],
  "host_permissions": [
    "*://steamcommunity.com/*",
    "*://skinbud.gg/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "skinbud.gg",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://skinbud.gg/*"
      ],
      "js": [
        "lib/browser.js",
        "content/skinbud-bridge.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://steamcommunity.com/profiles/*",
        "*://steamcommunity.com/id/*"
      ],
      "js": [
        "lib/browser.js",
        "lib/ui.js",
        "lib/money.js",
        "content/steam-profile.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://steamcommunity.com/market/listings/730/*"
      ],
      "js": [
        "lib/browser.js",
        "lib/ui.js",
        "lib/money.js",
        "content/steam-market.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@skinbud.gg",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo"
        ]
      }
    }
  }
}