Examine source code of Smart Diagram Drawer

{
  "manifest_version": 2,
  "name": "Smart Diagram Drawer",
  "version": "1.3",
  "description": "Generate simple diagrams from text input directly in your browser popup. Export to PNG supported.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icons/logo_32.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bdaa62a6-1240-410f-9dab-5b5d6cbcc561}"
    }
  }
}