Examine source code of SVG Extractor Pro

{
  "manifest_version": 2,
  "name": "SVG Extractor Pro",
  "version": "1.1.1",
  "description": "Finds and loads SVG images from web pages",
  "permissions": [
    "activeTab",
    "storage",
    "downloads",
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Find SVG on the page",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'; img-src 'self' data: *;",
  "web_accessible_resources": [
    "icons/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{541c5500-f82b-4b65-8e8e-55e4b7d934c2}"
    }
  }
}