Examine source code of Better GitHub Co-Authors

{
  "manifest_version": 3,
  "name": "Better GitHub Co-Authors",
  "version": "0.1.1",
  "description": "Adds a button to GitHub pull requests to make it simple to add co-author credits for all PR participants before merging.",
  "author": "swithinbank@gmail.com",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "host_permissions": [
    "https://api.github.com/*"
  ],
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "matches": [
        "https://github.com/*"
      ],
      "exclude_matches": [
        "https://*/login/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9a0ad28e-1832-44a4-8337-826ecf5663af}"
    },
    "gecko_android": {}
  }
}