Examine source code of Tab Name Changer

{
  "manifest_version": 2,
  "name": "Tab Name Changer",
  "version": "2.0",
  "description": "Rename your tab title on every website you like <created by ilias balhi in 2021 -> contact on balhi.ilias@gmail.com>",
  "icons": {
    "48": "Icon/icon1.png",
    "96": "Icon/icon1.png"
  },
  "permissions": [
    "<all_urls>",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "code.js"
      ]
    }
  ]
}