Responsive design, languages and fonts
Preview narrow screens, zoomed text and long translated labels. Keep buttons easy to tap and text readable against its background. Use translations and RTL controls where supported, then test the actual storefront locale rather than just the editor preview.
System fonts avoid additional font-provider requests. If you select Google-hosted fonts or externally hosted assets, visitors’ browsers request those resources from the configured providers. Account for those requests in your storefront privacy/cookie disclosures. File-font support depends on your plan and your right to use the font.