Examine source code of Link Name Copier

{
  "manifest_version": 2,
  "name": "Link Name Copier",
  "version": "1.1",
  "description": "Copy the name of any link with a right-click",
  "permissions": [
    "clipboardWrite",
    "menus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7cab7d59-a3d4-4ea7-9f66-122158fb98ec}"
    }
  }
}