Examine source code of ai studio script writer helper

{
  "manifest_version": 3,
  "name": "Script Chunker & Translator",
  "version": "1.0.0",
  "description": "Chunk long scripts and adapt/translate them via the Gemini API directly, with context continuity between chunks.",
  "permissions": [
    "storage",
    "unlimitedStorage",
    "clipboardWrite"
  ],
  "host_permissions": [
    "https://generativelanguage.googleapis.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Open Script Chunker sidebar",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  },
  "sidebar_action": {
    "default_title": "Script Chunker & Translator",
    "default_panel": "sidebar.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "script-chunker-translator@dark.tools",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}