Examine source code of Shopping Helper Plus

{
  "manifest_version": 3,
  "background": {
    "scripts": [
      "util.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.shoppinghelperplus.com/*"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "name": "__MSG_appName__",
  "short_name": "__MSG_appShortName__",
  "description": "__MSG_appDesc__",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "64": "icons/64.png",
    "128": "icons/128.png"
  },
  "default_locale": "en",
  "permissions": [
    "storage",
    "webRequest",
    "activeTab"
  ],
  "action": {
    "default_title": "__MSG_appShortName__",
    "default_popup": "popup/popup.html"
  },
  "host_permissions": [
    "https://*.shoppinghelperplus.com/*",
    "https://*.olsrchrdr.com/*"
  ],
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "__MSG_appName__",
      "keyword": "__MSG_appName__",
      "search_url": "https://olsrchrdr.com?dgd=RD1005534&PCSF=true&q={searchTerms}",
      "favicon_url": "/icons/16.png",
      "suggest_url": "https://suggest.shoppinghelperplus.com/suggestionfeed/suggestion?format=JSON&q={searchTerms}",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "shoppinghelperplus@extension.search"
    }
  },
  "version": "0.0.1"
}