Examine source code of Forex Calculator Suite

{
  "manifest_version": 3,
  "name": "Forex Calculator Suite",
  "version": "1.0.0",
  "description": "All-in-one Forex calculator: PIP value, lot size/position size, leverage, and profit/loss — fast risk-management tool for traders.",
  "action": {
    "default_title": "Forex Calculator Suite",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "host_permissions": [
    "https://open.er-api.com/*"
  ],
  "homepage_url": "https://www.kienthucso.com/",
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src 'self' https://open.er-api.com; img-src 'self' data:; style-src 'self';"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "forex-calculator-suite@kienthucso.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}