Examine source code of PromptTone

{
  "manifest_version" : 3 ,
  "name" : "PromptTone",
  "version" : "1.0.0",
  "description" : "One-click prompt optimization for ChatGPT, Gemini, and Claude.",
  "icons" : {
    "16" : "icons/icon-16.svg",
    "48" : "icons/icon-48.svg",
    "128" : "icons/icon-128.svg"
  },
  "permissions" : [
    "storage" ,
    "activeTab" ,
    "tabs" 
  ],
  "host_permissions" : [
    "*://chat.openai.com/*" ,
    "*://chatgpt.com/*" ,
    "*://gemini.google.com/*" ,
    "*://claude.ai/*" 
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "prompttone@sanjay.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "action" : {
    "default_title" : "Optimize Prompt",
    "default_popup" : "popup.html",
    "default_icon" : {
      "16" : "icons/icon-16.svg",
      "48" : "icons/icon-48.svg",
      "128" : "icons/icon-128.svg"
    }
  },
  "content_scripts" : [
    {
      "matches" : [
        "*://chat.openai.com/*" ,
        "*://chatgpt.com/*" ,
        "*://gemini.google.com/*" ,
        "*://claude.ai/*" 
      ],
      "js" : [
        "optimizer.js" ,
        "content.js" 
      ],
      "run_at" : "document_idle" 
    }
  ]
}