Examine source code of eBook Search

{
  "manifest_version": 2,
  "name": "eBook Search",
  "version": "1.3.7",
  "description": "The Best eBook Finder",
  "icons": {
    "16": "assets/icons/16x16.png",
    "96": "assets/icons/96x96.png",
    "128": "assets/icons/128x128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ebooksearch1@candytech.com",
      "strict_min_version": "42.0"
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "assets/icons/16x16.png"
    },
    "default_title": "eBook Search"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "author": "Candy Tech Ltd",
  "background": {
    "page": "main.html",
    "persistent": false
  },
  "homepage_url": "https://www.ebooksearchnow.com/",
  "permissions": [
    "cookies",
    "*://*.ebooksearchnow.com/*",
    "storage"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "web_accessible_resources": [
    "assets/js/*.js",
    "assets/icons/*.png"
  ]
}