Examine source code of Cardmarket Stream Mode

{
  "manifest_version": 3,
  "name": "Cardmarket Stream Mode",
  "version": "1.2.1",
  "description": "An Add-On to hide personal information on cardmarket for streaming or screen sharing",
  "browser_specific_settings": {
    "gecko": {
      "id": "{5a63a517-d89c-4e82-a9eb-b56de1a03f1e}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_icon": {
      "16": "img/logo-16.png",
      "32": "img/logo-32.png",
      "64": "img/logo-64.png"
    },
    "default_title": "Cardmarket Stream Mode"
  },
  "icons": {
    "16": "img/logo-16.png",
    "32": "img/logo-32.png",
    "64": "img/logo-64.png"
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "css/hide.css"
      ],
      "matches": [
        "https://www.cardmarket.com/*"
      ]
    }
  ],
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "https://www.cardmarket.com/*"
      ],
      "css": [
        "css/hide.css"
      ]
    },
    {
      "matches": [
        "https://www.cardmarket.com/*"
      ],
      "js": [
        "js/stream-mode.js"
      ]
    }
  ]
}