Examine source code of Stonks

{
  "name": "Stonks",
  "version": "1.0.10",
  "description": "Consulta o histórico de preços de produtos de lojas de tecnologia em Portugal",
  "permissions": [
    "tabs",
    "https://stonks.dinip.pt/*",
    "https://accounts.google.com/*"
  ],
  "icons": {
    "16": "icons/stonks16.png",
    "32": "icons/stonks32.png",
    "48": "icons/stonks48.png",
    "128": "icons/stonks128.png"
  },
  "background": {
    "scripts": [
      "src/browser-polyfill.min.js",
      "src/axios-0.21.1.min.js",
      "src/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.pcdiga.com/*/*/*/*",
        "https://www.pcdiga.com/*"
      ],
      "js": [
        "src/browser-polyfill.min.js",
        "src/jquery-3.5.1.min.js",
        "src/apexcharts.js",
        "src/graph.js",
        "src/script_pcdiga_beta.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.globaldata.pt/*"
      ],
      "js": [
        "src/browser-polyfill.min.js",
        "src/jquery-3.5.1.min.js",
        "src/apexcharts.js",
        "src/graph.js",
        "src/script_globaldata.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.pccomponentes.pt/*"
      ],
      "js": [
        "src/browser-polyfill.min.js",
        "src/jquery-3.5.1.min.js",
        "src/apexcharts.js",
        "src/graph.js",
        "src/script_pccomponentes.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.chip7.pt/*/*"
      ],
      "js": [
        "src/browser-polyfill.min.js",
        "src/jquery-3.5.1.min.js",
        "src/apexcharts.js",
        "src/graph.js",
        "src/script_chip7.js"
      ],
      "run_at": "document_end"
    }
  ],
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{158efb82-9ed2-4b35-b64d-99e4422a4a44}"
    }
  }
}