Examine source code of Lexical Developer Tools

{
  "manifest_version": 2,
  "name": "Lexical Developer Tools",
  "description": "Adds Lexical debugging tools to the Firefox Developer Tools.",
  "version": "0.33.0.0",
  "icons": {
    "16": "/icon/16.png",
    "32": "/icon/32.png",
    "48": "/icon/48.png",
    "128": "/icon/128.png"
  },
  "author": "Lexical",
  "homepage_url": "https://lexical.dev/",
  "permissions": [
    "tabs",
    "storage"
  ],
  "web_accessible_resources": [
    "injected.js"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Lexical DevTools",
    "default_popup": "popup.html"
  },
  "devtools_page": "devtools.html",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e646a35e-5f83-448b-8243-dcbcb8ea26b6}"
    }
  }
}