Examine source code of GILSON

{
  "name": "123 Formatador SAPIENS",
  "version": "7.3",
  "manifest_version": 2,
  "description": "Formatador de numeracao para o SAPIENS",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icon48.png",
    "default_popup": "popup.html"
  },
  "permissions": [],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://sapiens.agu.gov.br/*"
      ],
      "js": [
        "formatarcodigo.js",
        "formatarzero.js",
        "formatarcodigotrf1.js",
        "capturarnumeros.js",
        "capturarnumerosparacoluna.js",
        "capturarnupsparacoluna.js",
        "repetidos.js",
        "jquery-3.2.1.min.js",
        "popup.js",
        "background.js"
      ]
    }
  ]
}