Examine source code of SkinAlyze Sync

{
  "manifest_version": 3,
  "name": "SkinAlyze Sync",
  "version": "0.2.7",
  "description": "Sync your Steam Counter-Strike inventory with SkinAlyze (skinalyze.app) for reconciliation and trade awareness.",
  "permissions": [
    "storage",
    "alarms",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "https://steamcommunity.com/*",
    "https://api.steampowered.com/*",
    "https://www.skinalyze.app/*"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://steamcommunity.com/id/*/inventory*",
        "https://steamcommunity.com/profiles/*/inventory*"
      ],
      "js": [
        "content/inventory.js"
      ],
      "css": [
        "content/skinalyze.css"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://www.skinalyze.app/*"
      ],
      "js": [
        "content/skinalyze-bridge.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "incognito": "not_allowed",
  "browser_specific_settings": {
    "gecko": {
      "id": "skinalyze-sync@skinalyze.app",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo",
          "websiteContent",
          "financialAndPaymentInfo"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  }
}