Examine source code of Threadmark

{
  "manifest_version" : 3 ,
  "name" : "Threadmark",
  "description" : "Save and revisit important moments from your AI conversations.",
  "version" : "1.0.6.1",
  "icons" : {
    "16" : "assets/icon-16.png",
    "32" : "assets/icon-32.png",
    "48" : "assets/icon-48.png",
    "128" : "assets/icon-128.png"
  },
  "permissions" : [
    "storage" ,
    "tabs" 
  ],
  "host_permissions" : [
    "https://chatgpt.com/*" ,
    "https://claude.ai/*" 
  ],
  "background" : {
    "scripts" : [
      "background.js" 
    ]
  },
  "content_scripts" : [
    {
      "matches" : [
        "https://chatgpt.com/*" ,
        "https://claude.ai/*" 
      ],
      "js" : [
        "src/storage.js" ,
        "src/hosts/claude.js" ,
        "src/hosts/index.js" ,
        "src/domUtils.js" ,
        "src/sidebar.js" ,
        "src/highlight.js" ,
        "src/contentScript.js" 
      ],
      "css" : [
        "styles/styles.css" 
      ],
      "run_at" : "document_idle" 
    }
  ],
  "web_accessible_resources" : [
    {
      "resources" : [
        "assets/*.svg" 
      ],
      "matches" : [
        "https://chatgpt.com/*" ,
        "https://claude.ai/*" 
      ]
    }
  ],
  "sidebar_action": {
    "default_panel": "sidebar.html",
    "default_icon" : {
      "16" : "assets/icon-16.png",
      "32" : "assets/icon-32.png"
    },
    "default_title" : "Threadmark"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "threadmark@gooduse.ai",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}