Examine source code of Privacy-Manager

{
  "manifest_version": 2,
  "name": "Privacy-Manager",
  "version": "1.1.1",
  "description": "Web browser extension to quickly delete website cookies and data for the currently active website (active tab).",
  "developer": {
    "name": "Nathan Laan",
    "url": "https://github.com/NathanLaan/privacy-manager"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{272c67b0-929f-4d1a-aa86-eff52f94271a}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "cookies",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "activeTab",
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon-shield-blue-16.png",
      "24": "icon-shield-blue-24.png",
      "48": "icon-shield-blue-48.png",
      "128": "icon-shield-blue-128.png"
    }
  },
  "icons": {
    "16": "icon-shield-blue-16.png",
    "24": "icon-shield-blue-24.png",
    "48": "icon-shield-blue-48.png",
    "128": "icon-shield-blue-128.png"
  },
  "homepage_url": "https://github.com/NathanLaan/privacy-manager"
}