Examine source code of Gemini History Manager

{
  "manifest_version": 3,
  "name": "Gemini History Manager",
  "version": "0.19.1",
  "description": "Track and manage your Google Gemini chat history with advanced visualization and organization tools.",
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Gemini History Manager",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://gemini.google.com/*"
      ],
      "js": [
        "content-scripts/gemini-tracker/gemini-history-config.js",
        "content-scripts/gemini-tracker/gemini-history-state.js",
        "content-scripts/gemini-tracker/gemini-history-utils.js",
        "content-scripts/gemini-tracker/gemini-history-status-indicator.js",
        "content-scripts/gemini-tracker/gemini-history-model-detector.js",
        "content-scripts/gemini-tracker/gemini-history-input-extractor.js",
        "content-scripts/gemini-tracker/gemini-history-history-manager.js",
        "content-scripts/gemini-tracker/gemini-history-dom-observer.js",
        "content-scripts/gemini-tracker/gemini-history-gem-detector.js",
        "content-scripts/gemini-tracker/gemini-history-crash-detector.js",
        "content-scripts/gemini-tracker/gemini-history-event-handlers.js",
        "content-scripts/gemini-tracker/gemini-history-main.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gemini-history-manager@InvictusNavarchus",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}