Examine source code of Gemini Reddit Replier

{
  "manifest_version": 2,
  "name": "Gemini Reddit Replier",
  "version": "0.5.5",
  "description": "Draft replies to Reddit posts using Gemini AI with customizable models and prompts.",
  "icons": {
    "1024": "icons/icon-48.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "*://*.reddit.com/*",
    "*://generativelanguage.googleapis.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.reddit.com/r/*/comments/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "Gemini Reddit Replier",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2b281a8f-e00f-42e4-9478-52ad983440db}"
    }
  }
}