Twenty Twenty-Two is designed to be the most flexible default theme ever created for WordPress. It’s built for full site editing first as a block theme. The theme aims to ship with as little CSS as possible: our goal is for all theme styles to be configured through theme.json and editable through Global Styles. The theme development team will work closely with Gutenberg contributors to build design tools in the block editor that enable this goal.

From readme.txt

Built on a solidly designed foundation, Twenty Twenty-Two embraces the idea that everyone deserves a truly unique website.

• The theme’s subtle styles are inspired by the diversity and versatility of birds: its typography is lightweight yet strong, its color palette is drawn from nature, and its layout elements sit gently on the page.
• The true richness of Twenty Twenty-Two lies in its opportunity for customization.
• The theme is built to take advantage of the Full Site Editing features introduced in WordPress 5.9, which means that colors, typography, and the layout of every single page on your site can be customized to suit your vision.
• It also includes dozens of block patterns, opening the door to a wide range of professionally designed layouts in just a few clicks.

Whether you’re building a single-page website, a blog, a business website, or a portfolio, Twenty Twenty-Two will help you create a site that is uniquely yours.