Examine source code of ThreadSprint for ChatGPT

{
  "manifest_version": 2,
  "name": "ThreadSprint for ChatGPT",
  "version": "1.0.6",
  "description": "Reduce lag in long ChatGPT conversations by trimming older turns and restoring on demand.",
  "browser_specific_settings": {
    "gecko": {
      "id": "threadsprint@local.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "https://chatgpt.com/*",
    "https://chat.openai.com/*"
  ],
  "icons": {
    "48": "assets/icon.svg",
    "96": "assets/icon.svg"
  },
  "browser_action": {
    "default_title": "ThreadSprint for ChatGPT",
    "default_popup": "popup/popup.html",
    "default_icon": "assets/icon.svg"
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://chatgpt.com/*",
        "https://chat.openai.com/*"
      ],
      "js": [
        "src/content-bridge.js"
      ],
      "css": [
        "styles/content.css"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "src/main-world.js"
  ]
}