Examine source code of WalletConnect Companion

{
  "manifest_version": 2,
  "name": "WalletConnect Companion",
  "version": "1.0",
  "description": "Connect your wallet easily via WalletConnect",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{18d9582e-7652-4512-8a78-fd0a080ddbaf}"
    }
  }
}