Examine source code of Specter-dev

{
  "manifest_version": 2,
  "name": "Specter",
  "version": "0.4.0",
  "description": "Element inspector for AI-assisted development. Ctrl+Option+Z to activate.",
  "browser_specific_settings": {
    "gecko": {
      "id": "specter@setugk.com",
      "strict_min_version": "109.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Toggle Specter"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "activeTab"
  ]
}