Examine source code of Search & Destroy for Amazon, Etsy and Ebay!

{
  "manifest_version": 2,
  "name": "Search & Destroy for Amazon, Etsy and Ebay!",
  "version": "0.1.0",
  "icons": {
    "32": "icon_32.png",
    "48": "icon_48.png",
    "64": "icon_64.png",
    "96": "icon_96.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://muzoic.com/*",
        "*://store.cdbaby.com/*",
        "*://*.etsy.com/*",
        "*://*.fiverr.com/*",
        "*://*.ebay.com/*",
        "*://*.ebay.ca/*",
        "*://*.ebay.com.au/*",
        "*://*.ebay.at/*",
        "*://*.ebay.fr/*",
        "*://*.ebay.de/*",
        "*://*.ebay.com.hk/*",
        "*://*.ebay.in/*",
        "*://*.ebay.ie/*",
        "*://*.ebay.it/*",
        "*://*.ebay.com.my/*",
        "*://*.ebay.nl/*",
        "*://*.ebay.ph/*",
        "*://*.ebay.pl/*",
        "*://*.ebay.com.sg/*",
        "*://*.ebay.es/*",
        "*://*.ebay.ch/*",
        "*://*.ebay.co.uk/*",
        "*://*.amazon.com.br/*",
        "*://*.amazon.ca/*",
        "*://*.amazon.cn/*",
        "*://*.amazon.fr/*",
        "*://*.amazon.de/*",
        "*://*.amazon.in/*",
        "*://*.amazon.it/*",
        "*://*.amazon.co.jp/*",
        "*://*.amazon.com.mx/*",
        "*://*.amazon.es/*",
        "*://*.amazon.co.uk/*",
        "*://*.amazon.com/*"
      ],
      "css": [
        "style.css",
        "style_image.css"
      ],
      "js": [
        "lib/jquery-3.1.0.min.js",
        "lib/lodash.js",
        "lib/jquery.hotkeys.js",
        "lib/jquery.scrollTo.js",
        "util.js",
        "strings.js",
        "storeGeneric.js",
        "stores/amazon.js",
        "stores/etsy.js",
        "stores/fiverr.js",
        "stores/ebay.js",
        "stores/cdbaby.js",
        "stores/muzoic.js",
        "navigation.js",
        "content.js"
      ]
    }
  ]
}