Examine source code of Table Filter Extension

{
  "manifest_version": 3,
  "name": "Table Filter Extension",
  "version": "1.0.1",
  "description": "Adds multi-select filter dropdowns to table columns on web pages",
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "table-filter@risniking.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/content-BTvyBgzJ.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}