Web3 Balances Viewer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "version": "1.0.16",
  "name": "Web3 Balances Viewer",
  "description": "Display any blockchain wallet balances in seconds — including BTC, ETH, Polygon, BCS networks, and different currencies.",
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/icons/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_scripts": [
    {
      "js": [
        "contentScript.js"
      ],
      "css": [
        "css/plugin-style.css",
        "css/variables.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_title": "Web3 Balances Viewer",
    "default_popup": "app.html"
  },
  "options_ui": {
    "page": "app.html"
  }
}