Examine source code of pagetags

{
  "manifest_version": 2,
  "name": "pagetags",
  "description": "Füge die URL der aktuellen Site direkt als Lesezeichen zu deinem Account bei pagetags hinzu.",
  "version": "0.6.2",
  "homepage_url": "https://www.pagetags.net/",
  "author": "netbixx GmbH",
  "permissions": [
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {},
  "icons": {
    "16": "images/pagetags16.png",
    "32": "images/pagetags32.png",
    "48": "images/pagetags48.png",
    "128": "images/pagetags128.png"
  }
}