Examine source code of amgiflol

{
  "manifest_version": 3,
  "name": "amgiflol",
  "description": "Figma-like Layout Inspector For Web",
  "version": "0.3.4",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "homepage_url": "https://github.com/sm17p/amgiflol",
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "downloads",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "amgiflol@sm17p.me",
      "strict_min_version": "132.0"
    }
  },
  "developer": {
    "name": "Sm17p",
    "url": "https://github.com/sm17p/amgiflol"
  },
  "author": "Sm17p",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "amfiglol",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content-scripts/content.css"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ]
}