Examine source code of GitHub Enjoyer

{
  "manifest_version": 3,
  "name": "GitHub Enjoyer",
  "version": "1.0",
  "description": "Adds an instant download button on GitHub repositories for OS-specific releases.",
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "https://api.github.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "github-enjoyer@pext.org"
    }
  },
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  }
}