Examine source code of Copy title and url

{
  "manifest_version": 2,
  "name": "Copy tab title and url as markdown inline url",
  "short_name": "Copy tab title and url as markdown inline url",
  "description": "Add a context menu item to copy thye current tab's title (or selection) and url to clipboard, as a markdown inline url.",
  "version": "1.0",
  "author": "zero-one-two",
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "48": "icons/copy_title_and_url.png"
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "clipboardWrite"
  ],
  "applications": {
    "gecko": {
      "id": "riccardo2@pm.me",
      "strict_min_version": "57.0"
    }
  }
}