Ona.

Ona is a Full Site Editing WordPress theme based on the minimal design style. It comes with various pre-defined block patterns. It's easy to customize colors and fonts via global options. This theme is perfect for fast optimized websites that has instant impact On Core Web Vitals performance. You must have the Gutenberg plugin active (version 11.7 or newer) to use Ona before WordPress 5.9 is released. Demo: https://ona.deothemes.com/