Examine source code of WPpublishable

{
  "manifest_version": 2,
  "name": "publishable",
  "version": "1.0",
  "description": "Activate wordpress disabled publish button.",
  "icons": {
    "48": "icons/check.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://rouzegaremadan.ir/*/*"
      ],
      "js": [
        "core.js"
      ]
    }
  ]
}