Examine source code of Environment Sync Tool

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "version": "3.0.1",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "32": "/images/icons/environment-marker-32.png",
    "64": "/images/icons/environment-marker-64.png",
    "128": "/images/icons/environment-marker-128.png",
    "256": "/images/icons/environment-marker-256.png",
    "512": "/images/icons/environment-marker-512.png"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{35f0359b-2f58-18e2-a9a8-50cc70420a70}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collects_data": false
      }
    }
  },
  "action": {
    "browser_style": false,
    "theme_icons": [
      {
        "light": "/images/icons/environment-marker-32.png",
        "dark": "/images/icons/environment-marker-32.png",
        "size": 32
      }
    ],
    "default_icon": {
      "32": "/images/icons/environment-marker-32.png"
    },
    "default_title": "__MSG_extensionName__",
    "default_popup": "/popup/environment-marker.html"
  },
  "options_ui": {
    "browser_style": false,
    "page": "/options/options.html"
  },
  "background": {
    "scripts": [
      "js/background.min.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "libraries/favico.min.js",
        "js/content.min.js"
      ]
    }
  ]
}