Examine source code of Divar Price Reader

{
  "manifest_version": 2,
  "name": "Divar Price Reader",
  "description": "An Extention For Read Price From Divar.ir",
  "version": "0.3",
  "background": {
    "scripts": [
      "jquery.min.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.divar.ir/*"
      ],
      "css": [
        "content.css"
      ],
      "js": [
        "jquery.min.js",
        "content.js"
      ]
    }
  ]
}