Examine source code of Trust Wallet

{
  "browser_action": {
    "default_icon": {
      "32": "icons/light/32px.png"
    },
    "default_title": "__MSG_appName__",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "content.js"
      ],
      "matches": [
        "*://*/*"
      ],
      "run_at": "document_start"
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "default_locale": "en",
  "description": "__MSG_appDesc__",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "permissions": [
    "alarms",
    "tabs",
    "storage",
    "clipboardWrite"
  ],
  "version": "1.2.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2a22c28d-35de-4331-99cb-a2d7b23f2885}"
    }
  }
}