Did your editor font go default serif on WordPress 7.0?

This article addresses a common issue in WordPress 7.0 where the editor font defaults to serif. It explains that WordPress assumes use of a theme.json file for typography settings. The author provides a solution by adding a theme.json file with system-ui, sans-serif font family and line-height settings. Alternatively, users can disable 'Use theme styles' in Preferences. The post also reflects on the benefits of unifying front-end and back-end typography via theme.json, and notes that default editor styles can serve as a reminder of content as data. This is a technical guide for WordPress developers and site maintainers.