Examine source code of Chronological Threads

{
  "manifest_version": 3,
  "name": "Chronological Threads",
  "description": "Keeps threads.com from switching to the algorithmic view",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6b5e0ea3-35f9-42e4-abb1-b8807e5e81db}"
    }
  },
  "version": "1.0.2",
  "action": {
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage",
    "webNavigation"
  ],
  "scripts": [
    "src/background.js"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.threads.net/*"
      ],
      "js": [
        "src/threads.js"
      ],
      "run_at": "document_start"
    }
  ]
}