Examine source code of Keyword Highlighter Pro

{
  "manifest_version": 3,
  "name": "Keyword Highlighter Pro",
  "version": "11.1.3",
  "description": "Highlight and manage keywords and phrases on webpages with link-safe highlighting, dynamic-page support, search, import/export, and customizable matching and styles.",
  "permissions": [
    "storage"
  ],
  "action": {
    "default_title": "Keyword Highlighter Pro",
    "default_popup": "popup/popup.html"
  },
  "options_page": "manager/manager.html",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "author": "Masum Labs",
  "browser_specific_settings": {
    "gecko": {
      "id": "keyword-highlighter-pro@masumbinamir",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "140.0"
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}