Examine source code of Scroller for ChatGPT

{
  "manifest_version": 2,
  "name": "Scroller for ChatGPT",
  "description": "A browser extension that adds a timeline-style scroll rail to ChatGPT, making long conversations easier to navigate.",
  "version": "0.2.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{481d584c-5989-42bc-86c3-a7a03c9c5612}"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://chatgpt.com/*"
      ],
      "js": [
        "content-scripts/chatgpt.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "content-scripts/chatgpt.css"
  ]
}