Examine source code of GitHub Releases Button

{
  "manifest_version": 3,
  "name": "GitHub Releases Button",
  "version": "1.0",
  "description": "Adds an easily seen button to go to the Releases page on Github repos",
  "browser_specific_settings": {
    "gecko": {
      "id": "donnieyapp@gmail.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "host_permissions": [
    "https://github.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "48": "icons/icons48.png",
    "96": "icons/icons96.png"
  }
}