Examine source code of Tailwind Breakpoint

{
  "manifest_version": 3,
  "version": "1.0.2",
  "name": "Tailwind Breakpoint",
  "description": "Resize your browser based on Tailwind's breakpoint",
  "author": "8columns",
  "icons": {
    "16": "./icon.svg",
    "32": "./icon.svg",
    "48": "./icon.svg",
    "64": "./icon.svg",
    "128": "./icon.svg"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "action": {
    "default_icon": "./icon.svg",
    "default_title": "Tailwind Breakpoint",
    "default_popup": "./popup/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "tailwind_breakpoint@8columns.com"
    }
  }
}