Examine source code of Link-Md

{
  "manifest_version": 2,
  "name": "Link-Md",
  "description": "Create a markdown link of the current page with quoted text.",
  "version": "1.5",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "64": "icon-64.png",
      "128": "icon-128.png"
    },
    "default_title": "Copy"
  },
  "icons": {
    "64": "icon-64.png",
    "128": "icon-128.png"
  },
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Shift+C"
      }
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{11ea90de-7c7d-4f1f-a5a4-9baf3f519a6b}"
    }
  }
}