Examine source code of Paqt - Github pr helper

{
  "manifest_version": 2,
  "name": "github-pr-helper",
  "version": "1.0",
  "description": "Adds options to mark github PR's in the PR overview",
  "browser_specific_settings": {
    "gecko": {
      "id": "github-pr-helper@paqt.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "48": "icons/pr.svg",
    "96": "icons/pr.svg"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.github.com/*"
      ],
      "js": [
        "build/pr-script-bundle.js"
      ]
    }
  ]
}