Examine source code of Waaila Tracking Validator

{
  "manifest_version": 2,
  "name": "Waaila Tracking Validator",
  "short_name": "Waaila Validator",
  "version": "2.0.1",
  "icons": {
    "16": "img/waaila-16.png",
    "48": "img/waaila-48.png",
    "128": "img/waaila-128.png"
  },
  "description": "Waaila Tracking Validator is troubleshooting tool that helps you validate and test your analytics implementation.",
  "content_security_policy": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';",
  "permissions": [
    "activeTab",
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "core/content.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": {
      "128": "img/waaila-32.png"
    },
    "default_popup": "core/popup/popup.html"
  },
  "devtools_page": "core/devtools/devtoolsInit.html",
  "web_accessible_resources": [
    "core/contentInjected.js"
  ],
  "sandbox": {
    "pages": [
      "sandbox.html"
    ]
  },
  "background": {
    "scripts": [
      "core/background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ea74a4e7-40a9-4c3c-a2e4-3faa57db57dd}"
    }
  }
}