WordPress 5.8 comes with [a new mechanism](https://make.wordpress.org/core/2021/06/25/introducing-theme-json-in-wordpress-5-8/) to configure the editor that enables a finer-grained control and introduces the first step in managing styles for future WordPress releases: the `theme.json` file. Then `theme.json` [evolved to a v2](https://make.wordpress.org/core/2022/01/08/updates-for-settings-styles-and-theme-json/) with WordPress 5.9 release. This page documents its format.
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