Examine source code of WB Manager lite

{
  "manifest_version": 2,
  "name": "WB Manager",
  "version": "1.0",
  "description": "WB manager",
  "icons": {
    "48": "icons/wbhider.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://seller.wildberries.ru/*"
      ],
      "js": [
        "wbhider.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{11fdbe16-06e5-4705-ac1b-35b6957eb2d0}"
    }
  }
}