Examine source code of Kompege Task Copier

{
  "manifest_version": 3,
  "name": "Kompege Task Copier",
  "version": "1.0",
  "description": "Adds a copy button to tasks on kompege.ru for clean copying.",
  "permissions": [
    "clipboardWrite"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://kompege.ru/task*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "kompege-task-copier@example.com"
    }
  }
}