Examine source code of Satotious Streamline

{
  "manifest_version": 2,
  "name": "Satotious Streamline",
  "version": "1.7",
  "description": "Auto-Pay using the Lightning Network",
  "icons": {
    "32": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Satotious Streamline",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "browser-polyfill.min.js",
      "satotious-background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "browser-polyfill.min.js",
        "webln-content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "<all_urls>",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@satotious.com"
    }
  },
  "web_accessible_resources": [
    "webln-page.js"
  ]
}