Examine source code of Sorftime Save

{
  "manifest_version": 2,
  "name": "Sorftime Save",
  "version": "1.3.9.1",
  "author": "Sorftime",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_action": {
    "default_icon": {
      "48": "content/img/icons/i48.png",
      "64": "content/img/icons/i64.png",
      "128": "content/img/icons/i128.png"
    },
    "default_title": "Sorftime Save",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "content/js/purify.js",
        "content/js/jquery-3.5.0.min.js",
        "exceljs.min.js",
        "vendors.js",
        "vues.js",
        "common.js",
        "content.js"
      ],
      "css": [
        "css/vendors.css",
        "css/vues.css",
        "css/common.css"
      ],
      "matches": [
        "*://us.amazon.com/*",
        "*://www.amazon.com/*",
        "*://www.amazon.co.uk/*",
        "*://www.amazon.de/*",
        "*://www.amazon.fr/*",
        "*://www.amazon.it/*",
        "*://www.amazon.ca/*",
        "*://www.amazon.com.mx/*",
        "*://www.amazon.es/*",
        "*://www.amazon.co.jp/*",
        "*://www.amazon.in/*",
        "*://www.amazon.ae/*",
        "*://www.amazon.com.au/*",
        "*://www.amazon.com.br/*",
        "*://www.amazon.sa/*",
        "*://www.walmart.com/*",
        "*://shopee.tw/*",
        "*://shopee.ph/*",
        "*://shopee.com.my/*",
        "*://shopee.sg/*",
        "*://shopee.vn/*",
        "*://shopee.co.id/*",
        "*://shopee.co.th/*",
        "*://shopee.com.br/*",
        "*://tw.xiapibuy.com/*",
        "*://ph.xiapibuy.com/*",
        "*://my.xiapibuy.com/*",
        "*://sg.xiapibuy.com/*",
        "*://vn.xiapibuy.com/*",
        "*://th.xiapibuy.com/*",
        "*://id.xiapibuy.com/*",
        "*://br.xiapibuy.com/*",
        "*://*.temu.com/*",
        "*://*.shein.com/*",
        "*://save.sorftime.com/plugCollection*",
        "*://celebritytest.sorftime.com/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "exceljs.min.js",
        "vendors.js",
        "vues.js",
        "common.js",
        "seller.js"
      ],
      "matches": [
        "http://localhost:8081/*",
        "*://seller.sorftime.com/*",
        "*://sellertest.sorftime.com/*",
        "*://sellerpre.sorftime.com/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "alibaba.js"
      ],
      "matches": [
        "*://*.1688.com/offer/*",
        "*://cart.1688.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "content/*",
    "manifest.json"
  ],
  "default_locale": "zh_CN",
  "description": "辅助亚马逊卖家产品调研及运营。10大图表直观展示类目产品销量、新品、市场竞争垄断性及售后风险等。",
  "homepage_url": "https://www.sorftime.com",
  "icons": {
    "16": "content/img/icons/i16.png",
    "32": "content/img/icons/i32.png",
    "48": "content/img/icons/i48.png",
    "64": "content/img/icons/i64.png",
    "100": "content/img/icons/i100.png",
    "128": "content/img/icons/i128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "cookies",
    "alarms",
    "contextMenus",
    "*://*.sorftime.com/*",
    "*://*.amazon.com/*",
    "*://*.amzn.com/*",
    "*://*.amazon.co.uk/*",
    "*://*.amazon.de/*",
    "*://*.amazon.fr/*",
    "*://*.amazon.it/*",
    "*://*.amazon.ca/*",
    "*://*.amazon.com.mx/*",
    "*://*.amazon.es/*",
    "*://*.amazon.co.jp/*",
    "*://*.amazon.in/*",
    "*://*.amazon.ae/*",
    "*://*.amazon.com.au/*",
    "*://www.walmart.com/*",
    "https://save.sorftime.com/*",
    "*://*/plugCollection*",
    "*://seller.sorftime.com/login*",
    "*://sellertest.sorftime.com/*",
    "https://www.1688.com/",
    "*://h5api.m.1688.com/h5/*"
  ],
  "short_name": "Sorftime",
  "browser_specific_settings": {
    "gecko": {
      "id": "{99f94477-f3a3-4249-a7c8-dc0c5a6efde3}"
    }
  }
}