Examine source code of Copy Reddit for LLM

{
  "manifest_version": 2,
  "name": "Reddit to LLM Extractor",
  "version": "1.0",
  "description": "Copy a Reddit post and comment thread in a format optimized for language models (it only works on old.reddit.com). Also check out blogbrain.ai",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "*://*.reddit.com/*"
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.png"
    },
    "default_title": "Reddit to LLM"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.reddit.com/*"
      ],
      "js": [
        "content_scripts/content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background_scripts/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{31d154dd-da8b-4306-bc00-0d8ca0a00e48}"
    }
  }
}